Chimpanzee

Footage of the chimpanzee exploring a city centre has gone viral, and been viewed more than 350,000 times on Twitter.

Primatologist Cat Hobaiter told Newsweek the footage was "quite disturbing to watch" as such behavior is not normal.

"We're having an affair, I'll just say. Other dozens of visitors are allowed to make contact," said Adie Timmermans. "Then why not me?"

Traditionally, scientists thought Australopithecus' larger brain size meant it was smarter than modern great apes, but new research suggests that assumption is wrong.

"I'm not saying that there is no monkey, in fact, I am sure there is one on the loose. Out here, anything is possible, said Santa Fe police lieutenant Greg Boody.

Researchers analyzed 200 years of research relating to non-human primates and how they deal with death.

Bonobo mothers even direct their sons toward females who are ovulating, researchers have found.

She was described as "the kindest soul I've ever known, chimpanzee, human or otherwise."

The way chimpanzees responded to a fake snake in the grass speaks volumes.

Darwin, a male chimp, stole the infant just moments after it was born.

Animals need some ice-cold loving too.

A new study analyzes chimps' use of tools against a drone filming in the zoo.