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Show 6 Karl Gordon Lark There's another very clever. Can we thing that when make these foxes aggressive beasts, and they did. They with other foxes, just with respect to they made the tame foxes, they decided to now run see over between by a student and later aggressive tamest to the most Then they and tame. They got this incredible spectrum So did something very clever. They separated the animals' behavior. For day the stick them particular animal other. They made straight up? Was its tail they had all of traits instance, when a did it go to the back of the cage, recorded it for each the next they made was crosses the behavior into and it sure a they that characterized did it rush to the front of did it stay in the middle of the was variety of was variety oflittle traits being approached, human or whole a cage? They consistent behavior; it wasn't this day one thing, of that. What about its ears, did it flatten its ears? Did it wagging or not wagging? Was its tail between its legs? of these traits and then this process, this statistical type of what you do with were combined to this cluster these traits accounted for at there, of progeny foxes from the very analysis. This principal component analysis variation. You take all the variation between these animals and you start overlap are aggressive. measured, particularly Anna Kukekova measured or something he died of cancer years ago, but his work colleague he had-Lyudmila Trut. together and that by another cluster and these clusters a number now, it So it can be was are what is called very, very nice. graphed, 24 and it a So cluster accounts for accounting for it. You accounts for most of the variation. The variation left all; they're quite different. component, that's 2015 throats, but not humans. So Kukekova and Acland and the group components in something called principal component analysis. What they did the cage do away and be like normal wild foxes that these snarl and want to jump at your particularly-so Belyaev by now is deceased; taken September now is orthogonal. They don't They got the was a measure first principal of domestication. Then |
