In 1959, the Institute of Cytology and Genetics in Novosibirsk, Russia began breeding silver foxes in a controlled experiment. They continually selected foxes that were tolerant of humans and displayed little aggression. More than 40 generations later, they had produced a strain of foxes that behaved very much like domesticated dogs, and even sold many of them as pets.
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Key Facts In This Video
Foxes have flatter skulls and longer noses than coyotes, dogs, and wolves. 00:23
Russian scientists bred tame, dog-like foxes by selecting the ones that were less aggressive. 01:37
The fox is the most widely distributed carnivore. 02:11