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Practice Listening: Multiple Choice, Multiple Answers
ID: #35427
Short
Domesticated Creatures
Transcript:
The idea that a dog could seek help from a human does have a solid basis in science. In what's known as the "unsolvable task" experiment a dog first learns how to open a puzzle box with a tasty treat inside. The puzzle is then secretly switched for another that's impossible to solve. After becoming frustrated, dogs shift their attention away from the puzzle and onto a nearby human and then back to the puzzle. The dog attempts to shift the human's attention to the puzzle as a request for help. Human infants do the same thing. Such efforts are called "referential communication." So if dogs behave this way, you might expect the same from their close relatives: wolves. But when researchers tested wolves raised by humans, the animals just kept trying to solve the puzzle, never seeking help. Since the dogs and wolves were all raised the same way and by the same people, domestication must be responsible for the behavior.
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