
At work today, I got in a long discussion with two other P13Ners about how different dog breeds show how natural selection and evolution work. Of course, with dogs, it's not so much natural selection most of the time, but humans doing the trait selection. But it leads to analogous results. One of the other dogs on our floor is a little black daschund, Scooter, who's a cute little guy. The conversation started when Declan walked into an office and did a loop under the desk to look for crumbs. My friend commented that Declan didn't see - or didn't smell - a few crumbs that were down there, but Scooter would soon be by & would vacuum them up. Stephanie wanted to know why Scooter would be better at picking up crumbs than Declan, and I remarked "Oh, he's not a herding dog, so he's got way better eyesight and a better sense of smell." So we talked about how Declan is rather far-sighted but has super hearing, because those skills help you keep track of sheep, while Scooter, who was originally bred to hunt small animals, has a really good sense of smell. The we talked about Sammy's webbed retriever feet and fetch obsession. And Declan's duclaws and the rocky Shetland Islands, then how much humans knowingly selected different traits, while others just emerged. So yet another reason why it's fun having dogs at work, they lead to random discussions of Stephen Jay Gould.
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