Humans sleep less than every other primate on record, despite having the biggest brains — biologists call it the human sleep ...

Animal welfare advocates say these highly intelligent and social species suffer when transported continuously between ...

For nearly 30 years, a landmark study shaped how scientists understood the relationship between brain and body size in ...

On June 29, Gracie the Giraffe returned to her South Texas ranch after a 17-day walkabout and attendant media sensation. ...

Summary: A new study has completely revived and expanded this lost chapter of human evolution. Leveraging modern molecular genetic dating and advanced phylogenetic statistical modeling, researchers ...

Wednesday marked the hottest day of the year in Little Rock, and while many are doing their best to stay out of the heat, ...

Giraffe intelligence surprises scientists as the animals perform simple mental addition to choose larger hidden food rewards.

The San Antonio Zoo has welcomed a baby François' langur, an endangered primate born with bright orange fur that visitors can ...

Last month, one of the apes at New Mexico's ABQ BioPark surprised her caretakers after a robin fledgling fell into her enclosure. Eve, one of the park's resident siamangs, has always had a gentle, ...

Wild greater honeyguide birds in sub-Saharan Africa have learned to recognize specific human vocal calls used by local ...

A milestone worth celebrating.