Friday Weird Science

Ok, I'll admit, this post is kind of stolen from the fabulous Ed Yong of Not Exactly Rocket Science, who just won the Association of British Science Writers' Best Newcomer award! Imitation is the most sincere form of flattery, Ed. :) Well, the post isn't stolen, but the subject is. And it's actually been a little disappointing. When I first scanned the title, I thought it said "echinoderm", rather than "echidna", and I thought "Starfish sex!!! w00t1!!!" But no. Instead of talking about these getting it on: (oh yeah) We're talking about these: (Via Ed) You see? It's just...not the…

We know that a lot of organisms, from humans to bacteria to birds to bees, have lots of sex. But what has mystified scientists for years is WHY. I mean, it's fun and all (unless you're a poor beetle girl stuck with this), but what purpose does it serve? On the face of it, in fact, sex seems to be pretty BAD for about half of the population: the women. For example, there's a lizard out there than can reproduce both asexually and sexually. When it reproduces asexually, it producing nothing but girls, all of whom can reproduce both asexually and sexually. Net win. But when it reproduces…