• 2 days ago
It seems their pack has changed species.
Transcript
00:00Dogs are now man's best friend, but at some point, likely over 23,000 years ago, dogs
00:09were still wolves.
00:10Not yet domesticated, but now experts are looking into what makes some dogs act more
00:14like wolves.
00:15Specifically, what drives some breeds to do this?
00:21More than others.
00:22The researchers looked at 28 purebred breeds, playing for them recordings of wolves howling,
00:27finding that while there wasn't any statistical difference in how young dogs reacted, with
00:30older dogs there was.
00:31Here's one of the researchers to explain.
00:33The main finding was that the breed matters, actually.
00:40More precisely that those breeds which are genetically closer to wolves are more prone
00:49to respond with howling and they also show more stress signals than those which are less
00:54related to wolves.
00:56And the stress signals being yawning, shaking the body, licking the mouth, and scratching
01:00all were more frequent in dogs with closer genetic ties to wolves.
01:06So what do these findings mean exactly?
01:08Well the researchers say that selective dog breeding has brought dogs closer to human
01:12society than to their historical wolf packs.

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