Category Archives: evolution

WTF, transitional forms?

How dare he??? Source: many places

Why do animal species vary so much in the shape of pupils in their eyes?

Here’s a picture of some animal pupils from National Public Radio. The website showed them because they’re the subject of a new paper by M. S. Banks et al. in Sciences Advances (reference below; free download). The paper asks an interesting question: why do the pupils of vertebrate species vary so widely in shape? (Supplementary material, […]

Frogs use highly venomous head spines as weapons against predators

Well, my headline might be a bit misleading, as we’re not sure whether the unusual spines of these frogs are used as (or evolved to be) deterrents to predators, but it’s highly likely. A researcher who grabbed one of the frogs I’m about to describe reports this sensation: One of us (C.J.) was injured on the hand by […]

Prestigious doctor attributes antibiotic resistance to “development” rather than “evolution”

On the Public Broadcasting System news last night, reporter Gwen Ifill did a six-minute interview with Dr. Michael Bell, a deputy director at Atlanta’s renowned Center for Disease Control and an infectious disease specialist. The topic was antibiotic-resistant microbes. Bell clearly discussed the problem and origin of these resistant “superbugs”, but one aspect of his interview bothered me and my undergraduate […]

A four-legged snake

by Greg Mayer It has long been known that some snakes are two-legged, because many modern species have two legs– externally visible hind limbs– a fact we’ve noticed here at WEIT before. These small external legs, capped by keratinous claws, are supported internally by vestigial femurs and a vestigial pelvis. They are larger in males, […]

A d*g denies evolution

This was sent by Dan Dennett, who said that although it’s not great, it has its moments. And it does.

WEIT turned into videos

The MassComrehension site has begun making videos of WEIT, which I think is a distillation of my words from the book.  There are two videos put up so far at the WEIT Videobook site.  The makers are eager for feeback, so if you’ve watched either or both of these, please put your comments below. Part I: […]

Inbreeding depression in man

by Greg Mayer In a paper soon to appear in Nature, Peter K. Joshi and a cast of thousands show that inbreeding can make you shorter, ‘dumber’, and less likely to succeed in school, but not a blowhard. In a study of hundreds of thousands of people from dozens of populations from all over the […]

Cameroon lake cichlids probably did not speciate sympatrically: Part 2

Yesterday I gave the background necessary for understanding a new paper in Evolution by Christopher H. Martin et al. (reference and link below). Today I’ll briefly describe the paper’s findings—findings that cast doubt on one of our premier examples of sympatric speciation. That example was the existence of assemblages of cichlid fish in small volcanic crater […]

Cameroon lake cichlids probably did not speciate sympatrically: Part 1

I will break up my discussion of the paper below into two parts that will appear today and tomorrow. This is because I want to avoid a single long post that may put off readers. I give references to all the papers mentioned at the bottom of the post. All evolutionists agree, and the data show, that […]


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