A sanctuary founder who rescued hundreds of animals from a beleaguered Puerto Rico zoo is now doing the hard work of rehabilitation. After years of complaints about conditions at the Dr. Juan A.

A female northern elephant seal with her pup on the beach at Año Nuevo Reserve. (Photo by Dan Costa) Changing environmental conditions may threaten marine mammal populations by making it harder to ...

He joins a herd of elephants at the zoo that includes two half-siblings of his.

"Migratory animals are the planet's early-warning system and they are in trouble," Amy Fraenkel, CMS executive secretary, ...

Animal rights activists gathered outside of the Los Angeles Zoo on Sunday, calling for the release of an elephant who has spent more than three decades in the facility's care. The groups, made up of ...

A new study based on four decades of data from the elephant seal colony at Año Nuevo Reserve has enabled researchers to disentangle the effects of environmental conditions, population density, and ...

Photos and video are available to download in the Zoo’s Newsroom. The Smithsonian’s National Zoo community is mourning the loss of Ambika, the beloved eldest member of its Asian elephant herd. She was ...

Changing environmental conditions may threaten marine mammal populations by making it harder to find prey, and a new study shows how small, gradual reductions in prey could have profound implications ...