Friday, April 20, 2018

The Slander of “Darwinism”

Kenneth Miller has written yet another extraordinary essay, this one on the nature of the term “Darwinism” and how it is pejoratively used by those insistent on trashing evolutionary theory.  He writes:
He could have just said he didn’t believe in evolution, or that evolution had flaws. Or, he could have said that a book with a whole unit on evolution was just too much. But William Buckingham, of the Dover Area School Board in Pennsylvania, didn’t use the “E” word when he explained his objections to the biology textbook selected by the science teachers at Dover High School. Instead, he invoked a term that didn’t even appear in that textbook. Prentice Hall’s Biology: The Living Science, he claimed, “was laced with Darwinism from beginning to end.” Surely, he must have thought, “Darwinism” was a disqualifying slander that everyone could understand.
Buckingham, who was singled out for special re-probation by Judge Jones at the end of the trial, was at once ignorant and pejorative.  He was ignorant in that Darwin was not the only one to develop the idea of natural selection, Alfred Russel Wallace being the other one. He meant to be pejorative (in the same way that all of the Discovery Institute writers intend) because he knew that the term “Darwinism” carries with it the baggage of animus and atheism.As Miller notes, when an entire branch of science is referred to by its founder's name, then it takes on the air of an ideology, rather than a legitimate field of study.  The ideology can then be characterized as agenda-driven, attempting to tear out the heart of morality and decency.  None of this, of course, is true but the perception is rampant.  Miller also points out something of which I hadn't thought:
The overuse of Darwin’s own name facilitates another line of attack, by pretending that the field relies entirely on Darwin’s own work, fashioned in an age before the modern sciences of genetics, biochemistry and molecular biology emerged to confirm and expand his ideas. This allows the pretense that evolution is a stolid, unchanging field, with few new ideas that might refresh its 19th century heritage. Any scientist would scoff at this, of course, knowing the vigor that new discoveries constantly infuse into evolutionary biology. But to laypeople, unfamiliar with the rapid pace of scientific discovery, this can be a persuasive argument.
This would be no different from referring to modern physics as “Newtonism”  despite the vast advances that have been made since Newton's time.  Miller laments that these perceptions are hard to fight against because they appeal to emotions rather than empirical thought. Further, there are those of the atheist perspective who argue that, as humans, we are no better or special than any other species on the planet.   For this, though, he has an answer:
We are the children of evolution in every sense, part of Darwin’s fabled “tangled bank.” We must never forget that. But we must also remember that we are the only creatures to emerge from that thicket and make sense of it all. “Darwinism” does not diminish us. Rather, it puts the human experiment into a truly scientific perspective. We are not just hairless bipedal primates. We are creatures capable of the fugues of Bach, the verses of Yeats, the stories of Twain, the creations of Dalí and, for that matter, the mathematics of Gödel, Ramanujan and Turing.

In contemplating the lessons of evolution for our species and our culture, this is how we should overcome the mindless use of “Darwinism” as a slur. Some may feel demeaned by our evolutionary heritage, but I would argue that the more appropriate emotions are joy and delight. Joy that we are approaching a genuine understanding of the world in which we live, and delight at being the very first stirrings of true consciousness in the vastness of the cosmos. Far from diminishing us, knowing the details of Adam’s journey ennobles each of us as a carrier of something truly precious—the genetic, biological, and cultural heritage of life itself. Evolution describes not the death of Adam, but his triumph. That is the great truth of our story.
Masterful.

Thursday, April 19, 2018

Kent Hovind is Baaaacccckkkkkk!

Hemant Mehta writes for Patheos that Kent Hovind is back in the news.  You kind of have to read through the vitriol a bit:
In 2009, the IRS took control of Dinosaur Adventure Land, Kent Hovind‘s Creationist theme park in Pensacola, Florida, so that they could sell it off and recover the money Hovind owed for committing tax fraud. (It was a sad day for, like, three people.) Hovind was sentenced to 10 years in prison and was eventually released in 2015.
While there were attempts by Hovind’s son to buy back the property, that never worked out and the park has officially been closed since 2009.
You know what that means.
Hoving [sic] has built another Dinosaur Adventure Land! This one is in Repton, Alabama, and the grand opening takes place this Saturday.
That is not really what got Mehta's attention, however. It was this:

In the bottom left hand corner  is an image of Jesus holding a velociraptor as if it were a cute, cuddly kitten.  In the video, he speaks of evolution as being dumb and evil and “if you fell for that lie, we are here to show you the truth.”  The accompanying video is difficult to watch, as it largely contains Hovind's peculiar interpretation of  the book of Revelation, which is even murky to scholars who have been studying it for centuries.  That doesn't stop Hovind. 

I was never sympathetic to the case that got him thrown in gaol for a few years, but it is clearly evident that prison has not dulled his enthusiasm or oddness. 

Wednesday, April 11, 2018

Ardipithecus May Not Have Been Entirely a Facultative Biped After All

In a new article in the Proceedings of the National Academy of Sciences, several researchers have concluded, using 3D morphometric analysis have discovered that Ardipithecus ramidus, while still having facultative (didn't have to but could) bipedalism, when it did walk, its bipedal gait was nearly human.  From the abstract:
We show that hamstring-powered hip extension during habitual walking and climbing in living apes and humans is strongly predicted, and likely constrained, by the relative length and orientation of the ischium. Ape pelves permit greater extensor moments at the hip, enhancing climbing capability, but limit their range of hip extension, resulting in a crouched gait. Human pelves reduce hip extensor moments but permit a greater degree of hip extension, which greatly improves walking economy (i.e., distance traveled/energy consumed). Applying these results to fossil pelves suggests that early hominins differed from both humans and extant apes in having an economical walking gait without sacrificing climbing capability. Ardipithecus was capable of nearly human-like hip extension during bipedal walking, but retained the capacity for powerful, ape-like hip extension during vertical climbing. Hip extension capability was essentially human-like in Australopithecus afarensis and Australopithecus africanus, suggesting an economical walking gait but reduced mechanical advantage for powered hip extension during climbing.
This positions Ardipithecus as the classic intermediate in terms of bipedal locomotion.Although there are many traits in Australopithecus afarensis that are still transitional in terms of the rib cage, dentition and aspects of the hip, it is clear that the major adaptations for bipedalism were in place nearly a million years earlier.  This also suggests that it is not out of the realm of possibility that the fossil footprints in Crete really do reflect a bipedal hominin.  At the risk of positing heresy, the fact remains that we really don't know exactly where hominins first appeared.  This study also reinforced the distinct separation between apes and humans in terms of iliac shape, and that this split must have taken place even further back in time that we have supposed.

The Independent has a news story on this here.  One of the authors, Herman Pontzer remarks:
“It kicks us out of this old paradigm of thinking about human evolution,”...“In that old picture that is everywhere where you have the evolution of man going from crouching thing to upright thing to a human – as much as we have known that is not right, I still think people have it in their heads.”

Tuesday, April 10, 2018

New Homo sapiens Fossil Found in Arabia

A new fossil finger has been unearthed as Arabia that purports to be 87 ky old.  UPI is on it.
The fossil was found buried beneath the sands of the Nefud Desert, which today stretches across the Northern Arabia Peninsula. The site where the fossil was found was once home to a freshwater lake.
Around the time humans showed up, a climatic shift brought monsoons to the region, spawning grasslands. Animal fossils suggest antelope grazed the land and hippos swam in the ancient lake.
Researchers measured ratios of radioactive elements in the finger bone and compared the ratios to those found in animal fossils with confirmed dates. The analysis confirmed the age of the human fossil, the oldest found in Arabia.
"This discovery for the first time conclusively shows that early members of our species colonized an expansive region of southwest Asia and were not just restricted to the Levant," Huw Groucutt, a researcher with the University of Oxford and the Max Planck Institute for the Science of Human History, said in a news release.
How do we know it was from Homo sapiens?
Among these finds was a well preserved and small fossil, just 3.2 cm long, which was immediately recognized as a human finger bone. The bone was scanned in three dimensions and its shape compared to various other finger bones, both of recent Homo sapiens individuals and bones from other species of primates and other forms of early humans, such as Neanderthals. The results conclusively showed that the finger bone, the first ancient human fossil found in Arabia, belonged to our own species.
I do not have access to this article as neither the lab nor UT has a subscription to Nature: Ecology & Evolution. Aside: Given our focus on materials science and computing, I kind of get why ORNL does not have a subscription.  UT, not so much.  This journal should be in their wheelhouse.  According to the abstract, the find is securely dated and:
The palaeoenvironmental context of Al Wusta demonstrates that H. sapiens using Middle Palaeolithic stone tools dispersed into Arabia during a phase of increased precipitation driven by orbital forcing, in association with a primarily African fauna.
Maddenly, there is no information in the abstract about the morphology of the find, especially given that Neandertal and early anatomically modern phalanges are remarkably similar. I am sure they were able to differentiate it, but I would sure like to know how.

Tuesday, March 27, 2018

Babylon Bee: Ken Ham Arrested For Vandalizing Grand Canyon Signs To Read ‘JUST 4400 YEARS OLD’

I love the Babylon Bee.  They will skewer anything.  This post announces that Ken Ham was caught vandalizing signs in the Grand Canyon:
Dozens of informational signs throughout the park tell visitors that the Colorado River carved the canyon over the past six million years—but Ham allegedly painted over these signs and wrote “CANYON JUST 4400 YEARS OLD—WAKE UP!” national park rangers said at a press conference.

“We found Ham hiding behind a large rock formation with several cans of spray paint and a Sharpie after seeing his Facebook posts and pinging his phone to determine his exact location,” one ranger said. “All evidence points to this being a one-man operation. Pretty much all of our visitor signs were ‘corrected’ by Ham—even the big one at the main entrance.”
If you hadn't figured out that this was satire, the last sentence in the article should have been a big clue:
At publishing time, Ham had miraculously escaped captivity and was seen painting over signs at the Natural History Museum of Los Angeles.
The really funny thing about this post by the Bee is that it elicited a correction by the site “Business 2 Community,” which ran this:
Ken Ham, a spokesman for creationist, being arrested for vandalizing the Grand Canyon National Park signs to read “Just 4,400 Years Old” is satirical news. There is no truth to a report that an Australian Christian fundamentalist and young Earth creationist living in the United States found himself in trouble after he painted over signs at the country’s popular national park.

In case you don’t know, Ham is the president of Answers in Genesis, a Creationist apologetics organization that operates the Creation Museum and the Ark Encounter.
As of now, the site that Ham runs, Answers in Genesis, has yet to respond to the article.In fact, as nearly as I can tell, they have not acknowledged the existence of the Babylon Bee, whatsoever. 

Friday, March 23, 2018

Ken Ham: ‘If Christians don’t believe in a literal Genesis, they have no foundation for their doctrine’

Ken Ham gave a lengthy interview in The Christian Chronicle, conducted by Bobby Ross, Jr., in which he outlined why he believes in a young earth and a literal reading of Genesis.  Is he a “young earth creationist?”:
When people say, “Are you a young Earth creationist?” I want people to also understand that, you know, the reason we believe what we do is not because we’re young Earth creationists. It’s because we’re biblical creationists. As a consequence of taking the Bible as written, we believe in a young Earth. But we’re not young Earth first.

In other words, young Earth is not the issue. It’s just a consequence of the way we take Scripture. … We’re biblical creationists; we’re all about the Bible; we’re all about the Gospel of Jesus Christ.
This answer would be perhaps a tad more believable if a large chunk of the AiG website weren't geared toward dismantling old-earth and evolution arguments. The front page of the site contained, just a minute ago, no fewer than three articles on how to demonstrate young earth creationism.

Ham also prefers the term “biblical creationism” to ”young earth creationism,” suggesting that there is only one way to look at how God created the universe and only one way to interpret the Genesis creation stories (there are two). In their writings about this, there is a continual tendency to conflate the notions of a "biblical" creationism with a literal reading of the scripture.  They are not the same thing.

Ken Ham's Answers in Genesis has a post on what church thinkers through the ages thought about the creation days and the writer of the post, James Mook, manages to contradict himself within the space of two paragraphs.  First he writes:
In its first 16 centuries the church held to a young earth. Earth was several thousand years old, was created quickly in six 24-hour days, and was later submerged under a worldwide flood.
One paragraph later, we get this:
The Church Fathers (AD 100–600) were theologians after the apostles. Based on Scripture, they opposed naturalistic theories of origins. Some, including Clement of Alexandria (c. 152–217), Origen (c. 185–254), and Augustine (c. 354–430), interpreted Genesis 1 allegorically. To them, the six days were a symbolic presentation of God’s creation in one instant.
If they were a symbolic presentation of God's creation in one instant, then they clearly did not think that the creation played out over six 24-hour days. It is, further, unfair to argue that the church fathers were young earth creationists because they thought the earth was young.  Everybody at the time thought the earth was young. There was no evidence to the contrary.  Now there is, plenty of it.

When asked about whether or not the age of creation is a salvation issue, he appears to say one thing but mean another. 
Nowhere in the Bible does it connect salvation to the age of the Earth. Right? If you confess with your mouth the Lord Jesus and believe in your heart that God has raised him from the dead, then you will be saved. Romans 10:9. In other words, salvation is conditioned on faith in Christ. Faith alone. Grace alone. Christ alone.

And so, then people say to me, “So, you can believe in millions of years and still be a Christian?” Well, I know many Christians who believe in millions of years. It’s not a salvation issue.

And then if people say to me, “So, it doesn’t matter?” I would say, “Yes, it does matter.” And the reason I say “Yes, it does matter” is because, ultimately, it’s an authority issue. In other words, where you get the millions of years from, you don’t get that in Scripture.

Not only that, but if you’re going to believe in millions of years, the idea of millions of years really came out of atheistic and deistic naturalism of the 1700s and 1800s, from people who wanted to explain the fossil record and natural processes without God. So, the fossil record was supposedly laid down before man. Now, the fossil record is a record of death. Now in the fossil record, there’s lots of examples of diseases and bones like of dinosaurs, cancer, arthritis, other diseases.
He is absolutely correct that nowhere in the bible is the age of the earth connected with salvation. Score one for Ham. The problems begin with what he says afterwards.  What he continues with reveals a very false understanding of the history of science and the denigration of the work of some very devout men of God.

He claims that you don't get “millions of years” from scripture.  The problem is that you don't necessarily get six consecutive 24-hour days from scripture, either.  That idea was added by Wycliffe, in the late 1300s.  As pointed out above and by many different theologians, many of the early church fathers did not interpret the creation days literally.  These are people that lived within the first three centuries after Christ, who were integral in spreading the gospel.  And, somehow, I am supposed to believe that they are wrong and Ken Ham is right?  This is not an authority issue at all.  This is an issue of interpretation.

Additionally, with his “millions of years” quote, Ham is making a point of demonizing the people that earnestly tried to understand how the world worked and what clues it yielded about how it was created and when.  Many of the researchers who worked out the geological layers in the seventeen and eighteen hundreds such as Georges Cuvier, Adam Sedgwick and William Buckland were strong Bible-believing Christians who wrestled with the data that they uncovered, in an effort to understand how it fit with God's word.  Cuvier, who developed the idea of catastrophism, concluded that there had been many world-wide floods over a long period of time, of which Noah's flood was the last.  In his farewell speech to the Geological Society of Britain, Sedgwick, who was ordained Anglican minister and thorough evangelical said this about the great flood:
Bearing upon this difficult question, there is, I think, one great negative conclusion now incontestably established -- that the vast masses of diluvial gravel, scattered almost over the surface of the earth, do not belong to one violent and transitory period. It was indeed a most unwarranted conclusion, when we assumed the contemporaneity of all the superficial gravel on the earth. We saw the clearest traces of diluvial action, and we had, in our sacred histories, the record of a general deluge. On this double testimony it was, that we gave a unity to a vast succession of phenomena, not one of which we perfectly comprehended, and under the name diluvium, classed them all together.

To seek the light of physical truth by reasoning of this kind, is, in the language of Bacon, to seek the living among the dead, and will ever end in erroneous induction. Our errors were, however, natural, and of the same kind which lead many excellent observers of a former century to refer all the secondary formations of geology to the Noachian deluge. Having been myself a believer, and, to the best of my power, a propagator of what I now regard as a philosophic heresy, and having more than once been quoted for opinions I do not now maintain, I think it right, as one of my last acts before I quit this Chair, thus publicly to read my recantation.
Since Sedgwick's time, the evidence for a world-wide flood has not gotten any better. In fact, as Carol Hill, another Christian geologist points out, there is no evidence for it, whatsoever. For Ham to denigrate the work of these scientific giants as being the products of atheistic and deistic naturalism is not just incorrect, it is insulting.

It also reveals that he knows very little about the history of geology.  Further, he knew very little about the lives of the people he was denigrating.  Sedgwick remained an evangelical Christian throughout his life, as did Hutton and Cuvier. 

Theologians and scholars have wrestled with the Genesis creation accounts for centuries in an effort to try to understand them and their subtlety and breadth.  Ken Ham reduces them to a flat, bare bones account that holds little more than a sterile textbook.  It is a grand story of God's creation.  Whether it happened in six days or over the course of four billion years is irrelevant.

I would encourage you to read the whole interview, in which Ham pretty much condemns every view of creation that does not comport with his.  This, above all, is what makes Ham controversial.  He is, perhaps, the most divisive person in Christendom. 


Tuesday, March 20, 2018

Modern Humans Interbred with Two Groups of Denisovans

There is now more evidence that were were “one big happy family.”  Here is a short recap:
Beginning around 1.8 million years ago, a hominin form called Homo erectus left Africa for points east, eventually settling in Indonesia and China. These early humans were characterized by having heads roughly ¾ the size of modern humans with very large brow ridges and with their widest point just above the ears. They were also the first humans to conquer fire and perfect hunting.
Then, at some point, between 300 and 500 thousand years ago, a population group migrated from North Africa into Europe and, eventually into East Asia. The European branch became the Neandertals, between 200 and 250 thousand years ago, and the East Asian group eventually became the Denisovans. The Denisovans then spread east and south, eventually mixing with other populations, some of which were the precursors of the Melanesians and native Australians. The bulk of the Neandertals hunkered down in Europe and tried to outlast the bitter cold of not one but two glaciations.  Despite this, while often pilloried in cultural literature as being half-witted brutes, Neandertals were a very complex society, with advanced weaponry and hunting behavior, grave goods, habitation structures and who practiced ritual behavior. Some populations of Neandertals eventually  expanded their range into Western Asia and steppic Russia and interbred with the Denisovans.  Unfortunately, as a culture, we know next to nothing about the Denisovans. 
Roughly 100 thousand years after this, there was yet another wave of migration, between 100 and 60 thousand years ago, of early modern humans from North Africa, who moved north and East mixing with both the Neandertals in Europe and, perhaps, Western Asia and the Denisovans in East Asia.
And now we learn that the modern humans arriving from Africa interbred with not one but two groups of Denisovans.  From Gizmodo:
We know so little about the Denisovans that they don’t even have a formal scientific name, though scientists are considering Homo sp. Altai or Homo sapiens ssp. Denisova. Indeed, as these names suggest, Denisovans were a branch of humans, having diverged from Neanderthals some 200,000 years ago. We know this because the Altai fossil yielded a near-complete genome, which scientists have been poring over since it was first sequenced in 2010.

But in addition to the Neanderthal ancestry, genetic anthropologists also learned that Denisovan DNA lives on in modern humans, especially among Oceanians and East and South Asians. This means anatomically modern humans, or Homo sapiens, must’ve interbred with a population of Denisovans. But as new research published today in the science journal Cell points out, our ancestors mated with Denisovans on at least two different historical occasions. So the traces of Denisovan DNA embedded in the genomes of some people living today originated from at least two distinct Denisovan populations.
Given Palaeolithic population densities, this is not surprising.The research seems to indicate that there were early modern human/Denisovan mixes in both Asia and Oceania.  What this means is that, once the Denisovans and Neandertals split, the Denisovans migrated east and northeast (as humans will do) and established population centers in these areas.  When the modern humans came (Huh.  I wonder what is over that hill?  Oh look, humans...sort of.) it made sense to intermingle with them.  We already know that Neandertals and modern humans could, and did, mix.  It is, absent any knowledge to the contrary, reasonable to assume that the Denisovans looked mostly modern human. 

Interestingly, the research seems to indicate that the rate of interbreeding of Neandertals to early moderns was much more limited than with moderns and Denisovans.  This is at variance with other studies (and fossil material) which seems to indicate more sustained contact.  It would be nice if we could find a bit more fossil evidence to get a handle on what at least one Denisovan looked like. 

Saturday, March 10, 2018

Human Evolution, Walking and FoxP1

The Smithsonian has an interesting article on hox genes and how a discovery may inform about how walking came about:
What does a mouse have in common with a cartilaginous fish known as a little skate?

At first glance, you might think not much. One’s fluffy, with big ears and whiskers; the other breathes with gills and ripples its way around the ocean. One is a lab animal or household pest; the other is most likely to be seen in the wild, or the bottom of a shallow pool at an aquarium. But it turns out these two vertebrates have something crucial in common: the ability to walk. And the reason why could change the way we think about the evolution of walking in land animals—including humans.

A new genetic study from scientists at New York University reveals something surprising: Like mice, little skates possess the genetic blueprint that allows for the right-left alternation pattern of locomotion that four-legged land animals use. Those genes were passed down from a common ancestor that lived 420 million years ago, long before the first vertebrates ever crawled from sea to shore.
According to the story, when the researchers removed the FoxP1 gene (short for Forkhead Box P1) from the skates, they couldn't walk.  Further analysis revealed that the same thing happened to mice.  They simply lost the ability to coordinate their legs.  They couldn't walk.  This research suggests that the gene that allows us to do the simple act of walking originated over 400 million years ago.  Neat stuff.

Friday, March 09, 2018

Daniel Everett: Homo erectus Could Speak and Make Boats

Bentley University Global Studies professor Daniel Everett argues that Homo erectus could speak and had the ability to make ocean-going vessels.  The Guardian has the story:
“Oceans were never a barrier to the travels of Erectus. He travelled all over the world, travelled to the island of Flores, across one of the greatest ocean currents in the world,” said Daniel Everett, professor of global studies at Bentley University, and author of How Language Began. “They sailed to the island of Crete and various other islands. It was intentional: they needed craft and they needed to take groups of twenty or so at least to get to those places.”

While Everett is not the first to raise the controversial possibility that
H. erectus might have fashioned some sort of seagoing vessel, he believes that such capabilities mean that H. erectus must also have had another skill: language.

Erectus needed language when they were sailing to the island of Flores. They couldn’t have simply caught a ride on a floating log because then they would have been washed out to sea when they hit the current,” said Everett, presenting his thesis at the meeting of the American Association for the Advancement of Science in Austin. “They needed to be able to paddle. And if they paddled they needed to be able to say ‘paddle there’ or ‘don’t paddle.’ You need communication with symbols not just grunts.”
It is pretty clear that Homo erectus hunted, at least in some fashion, could control fire and evidence seems to be accumulating that they hafted spears and, at least late in the range, the European variant set up rudimentary complex settlements.

There is, naturally, skepticism that any hominin form prior to Neandertals were sea-going: 
But others say that there is little evidence that H. erectus was a sophisticated seafarer, let alone had a language. “I don’t accept that, for example, [Homo] erectus must have had boats to get to Flores,” said Chris Stringer, head of human origins at the Natural History Museum in London. “Tsunamis could have moved early humans on rafts of vegetation.”
Before dismissing that idea out of hand, remember that it is the best one going to explain how the New World Monkeys got where they are, since Africa and South America had parted ways some 180 million years prior to their arrival.

I think there is likely not enough evidence to know one way or another if Homo erectus could sail the high seas and had speech, although the only skeletal evidence that we have for that part of the anatomy suggests not. 

Thursday, March 08, 2018

A Mistake Rectified

I have been extraordinarily busy the last few weeks and had hoped to post about this at the time.  Ken Ham was invited to speak at the University of Central Oklahoma.  I have no sympathy for anything that Ken Ham either writes or speaks but what happened next was appalling.  After the invitation, pressure was put on the UCO student association by LBGT groups to disinvite him.  LGBT people make up (charitably) 5% of any given population.  Nonetheless, the UCO group in charge, in what is coming to be the typical, spineless response, rolled over and acceded to their demands.  According to school officials this was done independently of campus administration:
“The university may advise, but does not direct, the activities of [University of Central Oklahoma Student Association],” Johnson wrote. “In fact, in the spirit of the UCO policy on freedom of expression, the university President, Provost and the Vice President of Student Affairs supported and did not deny the proposal to bring Mr. Ham to campus to encourage conversation and debate of diverse perspectives. This was prior to UCOSA’s cancellation of the invitation to Mr. Ham.”
More information came out by way of student association president, Stockton Duvall:
He also said he had been bullied by “a very vocal group on campus that has little tolerance for opposing viewpoints.” Duvall did not specifically cite LGBT activists in his memo.
But according to emails obtained by Todd Starnes of Fox News, LGBT activists played a role.
“We are currently getting bombarded with complaints from our LGBT community about Ken Ham speaking on our campus,” Duvall wrote in an email to Answers in Genesis.
This ought to be simple. If you don't like what the speaker is saying, don't go.  It has been an interesting study in cultural norms to watch the LGBT community go from asking for tolerance to demanding tolerance to, now, demanding endorsement of their views and behaviors.  As far as they are concerned, it is now no longer okay to have a view that doesn't fit with the gay agenda and people who's views don't align shouldn't be allowed to speak. That the student government association obliged them is disgraceful.

But then this happened:
The University of Central Oklahoma (UCO) has decided to re-invite Christian creationist Ken Ham to present his views at the institution, after he was dis-invited last week.

The decision has been celebrated by some on the campus as a step forward for 'free speech', according to KOKO News 5. Ham's perhaps surprising re-invitation stands out in UK and US student culture, where the 'no-platforming' of controversial speakers has become more common.
Kudos to pastor Paul Blair of Fairview Baptist Church for leading the charge to get Ham re-invited. As much as I don't agree with Ham, I have no patience or sympathy with liberal fascism or bullies.