Pharyngula

PZ Myers

I think this is rather awesome: a detailed examination of the Cambrian fossil Hallucigenia, specifically an examination of the fine structure of its claws, has revealed clear affinities of the long extinct form to this adorable little guy, the velvet worm.

Why do cavefish lose their eyes?

It’s another Dawkins question! Why do cave-dwellers lose their eyes? They’re useless, but are they harmful? Costly to make? Or eroded by rain of uncorrected mutations? I thought I’d already addressed this in a blog post long ago, but I searched, and I didn’t — it was my inaugural column in sadly defunct Seed magazine,…

Ophelia has summarized a series of science questions Richard Dawkins asked on Twitter. Hey, I thought, I have answers to lots of these — he probably does, too — so I thought I’d address one of them. Maybe I can take a stab at some of the others another time. I like this one, anyway:…

But Mary tells me I have to post a picture of a British bulldog puppy anyway.

We know a lot about the sexy bits of male cephalopods — ask about hectocotyl arms and spermatophores sometime — but would you be surprised to learn that we don’t know much at all about squid ladybits? Of course you wouldn’t.

How we got here

It’s been 25 years since Gould’s Wonderful Life: The Burgess Shale and the Nature of History crystallized the debate over the importance of contingency in evolution, most famously illustrated by his metaphor of “replaying the tape of life”. If we could roll back the history of life on earth and restart it in the pre-Cambrian,…

We do, however, require a formal seminar of our biology undergraduates in their senior year. We must make sure none of them ever see this comic!

We’ve been invaded by a pair of groundhogs who have taken up residence under our deck, and are apparently dining grandly on our weedy overgrown backyard. They’re evasive, though, and I’ve only got this one poor shot of one of them resting in the dappled shade. OK, here’s a clearer shot of what they look…

2 + 2 = 17, for certain values of 2

A while back, I responded to Behe/Luskin’s claim that his model proving the impossibility of evolution of chloroquinone resistance was vindicated. I pointed out (as did Ken Miller) that showing that a particular trait required multiple point mutations did not affect the probability in the naive way that Behe and Luskin calculated — in particular,…