Add Yahoo as a preferred source to see more of our stories on Google. The Virginia opossum (Didelphis virginiana). This year's older cub came to drink at the human dwelling.© Karel ...

Illness is a powerful force in evolution, pushing animals to evolve a suite of behaviors – “sickness behaviors” – to help them get over those illnesses more efficiently. For a long time, doctors ...

In a new research paper published in Science, cognitive scientists from Johns Hopkins University reported on a bonobo’s ability to participate in shared imaginative play that was previously considered ...

The Virginia opossum (Didelphis virginiana). This year's older cub came to drink at the human dwelling.© Karel Bock/Shutterstock.com Animals playing dead is a real, scientifically described behavior ...