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A new study suggests chimpanzees don't just perform self-care—in some cases, they look out for each other. Elodie Freymann Chimpanzees use medicinal plants to perform first aid on others, according to ...

A humpback whale stays by the side of a whale entangled in fishing gear. He spent more than five hours by her side, swimming below her and raising her to the surface to breathe. Photograph By Dan ...

It's no secret that dogs can make friends quite easily, but as it turns out, that doesn't just apply to their own species. The adorable friendship between a farm dog and a cow has delighted the ...