A monkey in Indonesia cannot own the copyright to a famous smiling selfie it took in 2011, the 9th U.S. Circuit Court of Appeals ruled Monday. The unanimous, three-judge panel upheld a lower court ...

When human and chimp infants are dozing, they sometimes show facial movements that resemble smiles. These facial expressions, called spontaneous smiles, are considered the evolutionary origin of real ...

This one is sure to put a smile on your face -- a team of Japanese researchers found that sleeping baby monkeys could shed light on the origins of laughter and smiles in humans. When either a chimp or ...

This joyful monkey can’t stop smiling! 🐒😊 Watch as he plays, eats, and enjoys his day with pure happiness. His cheerful expressions and playful moves are sure to brighten your mood. If you love ...

We can all breathe a sigh of relief as those macaque monkey pictures may belong in the public domain. Neither the photographer nor the news agency that published the ...