时差N小时:如何训练你的狗狗(下)

But it was hard for wolves.

Wolves that have been raised by people should have had the same success at finding the sealed container, but they didn't.

Even chimpanzees, which are very smart animals indeed, weren't as fast at finding the food as dogs.

What does this mean?

One interpretation is that dogs do, in fact, have a natural ability to understand forms of human communication.

Even nine-week old puppies found the food, suggesting the skill is there before training.

Wolves don't have the skill, suggesting that it has developed in dogs since the time they branched off from their evolutionary predecessors.

There is debate about this idea.

But Tomasello thinks that in the past fifteen thousand years, as human beings and dogs have evolved together, the basis for fido's ability to understand what you mean may have become encoded in his genes.

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