Chimpanzees will travel for preferred foods, innovate solutions

Just as humans will travel to their favorite restaurant, chimpanzees will travel a farther distance for preferred food sources in non-wild habitats, according to a new study from scientists at Chicago's Lincoln Park Zoo that ...

Dolphins and whales experience pleasure

Sam Ridgway has spent most of his life learning about dolphins and whales. Over his five-decade career he has asked these cetaceans various questions, including how deep they can dive and how depth affects their hearing. ...

Cockatoos know what is going on behind barriers

How do you know that the cookies are still there although they have been placed out of your sight into the drawer? How do you know when and where a car that has driven into a tunnel will reappear? The ability to represent ...

Man's best friend

People have an innate need to establish close relationships with other people. But this natural bonding behaviour is not confined to humans: many animals also seem to need relationships with others of their kind. For domesticated ...

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