Two chimpanzees meeting with each other apparently have a discussion using hand gestures, one of the human-like characteristics of other mammals. (Getty Images) Of the 8.7 million species on Earth, ...

Of the 8.7 million species on Earth, why are human beings the only one that paints self-portraits, walks on the Moon and worships gods? For decades, many scholars have argued that the difference stems ...

One of the perks of writing a book for a general audience is that you occasionally receive mail from enthusiastic young readers. Recently, a high school student emailed me a thought-provoking question ...

Add Yahoo as a preferred source to see more of our stories on Google. A fox and an otter stand together on a city street crosswalk illuminated by glowing blue and orange lights at night.© A-Z Animals ...

Keller Kopf does research on long-lived animals and has received grants associated with the management and conservation of fisheries and wildlife. In humans and other animals, ageing is generally ...

Humans have built lucrative industries out of safari trips: candid on-the-ground looks at wild animals in their natural ...