3D imaging of a pelvis suggests social care for saber-tooths

You can't spell 'Smilodon fatalis' without 'fatal', but researchers at La Brea Tar Pits may have found a softer side to saber-toothed cats along with a connection to our own feline and canine companions.

Male giraffes are more socially connected than females

Although female giraffes have closer "friends" than male giraffes, male giraffes have more "acquaintances" than females, according to a new study by an international team that includes a Penn State biologist. The study demonstrates ...

Chimps learn 'handshakes' according to social group: study

Chimpanzees develop specific handshake-like gestures depending on their social group, according to the results of a 12-year observational study published on Wednesday that sheds light on the animals' complex social structures.

Friendly pelicans breed better

Captive pelicans that are free to choose their own friendships are more likely to breed successfully on repeated occasions, new research suggests.

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