OK, I'm a big fan of Mac computers and OS X, and as you might guess, I'm also a big booster for evolutionary biology. The open source core of Mac OS X is called Darwin, which is the kind of synchronicity that makes me very happy—it's like peanut butter and chocolate, or squid and garlic¹, or Fred and Ginger², two things that go well together. Then, unfortunately, I read about the history of Open Darwin's mascot:

Hexley was created in response to a query on the Darwin Developers mailing list that they needed a mascot. This was sometime in the year 2000. A web vote was taken of the various submissions and my platypus was chosen. Some of the other submissions included an Aqua Darwin fish and various devilish modifications of Clarus the DogCow.
Once my platypus was chosen someone suggested that we use "Hexley" as the name of the new mascot since Darwin's assistant was named Hexley. It turns out we were wrong and the person we were referring to was actually Thomas Henry Huxley. Huxley was not Darwin's assistant but was a prominent English biologist in his own right. He was a vociferous defender of Darwin's theories, so much so that he was nick-named "Darwin's Bulldog".
By the time we found out our mistake "Hexley" had escaped into the ether and we felt that it was to late to change the name to "Huxley".

Oooh. Ow. How embarrassingly ignorant. It's bad enough that "someone" was so cavalier about the facts that they would toss out that misremembered rationale in the first place, but then for it to bounce around on a mailing list and no one noticed…ick.

If they thought a platypus was an appropriate Darwinian creature because it was transitional between a duck and a beaver, please, don't tell me.