PSYC 3201 Lecture Notes - Lecture 2: Epigenetics, Wheelie, Northern Pintail
12 Dec 2016
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When one trait is modified through selection from nature or man other traits are likely to also be modified. Tried to selectively modify silver foxes to become more tame by breeding calmer foxes with each other. By the 10th generation, ear shape had changed, barking appeared, and adrenaline decreased. It was inferred that modification of tameness also modified these traits. By 20th generation, floppy ears, curled tails, and different coat colors. Smellie described domesticated animals as degraded, disfigured, and altered. Lorenz says that they have lost behaviors (courtship) and specificity to stimuli. Wild mallards are monogamous while domesticated ducks are polygamous (no data supports this) Evidence of degeneration are casual, nonquantitative observations in artificial, species- atypical environment. Dr. miller studied domestic peking ducks in the wild. Domestic mallards have been bred and have different colors than wild ducks. Konrad studied this the most, claims you won"t see these in domestic ducks. Grunt whistle of males and throwing of water.
