Sudan, a northern white rhino and the last male of his subspecies, died Monday at the Ol Pejeta Conservancy in Kenya. The rhino — once called by the dating app Tinder as the “most eligible ...

Howlers are New World monkeys found in tropical Central and South America. They are aptly named for their cacophonous cries. When a number of howlers let loose their lungs in concert, often at ...

A kindergartner frolics on a jungle gym during a festival in Louisville, Kentucky, in September 2017. Natosha Via When Sebastian “Ted” Hinton was a child, his father, a Princeton mathematician ...

The rhino and the people who tried to save his species taught one photographer indelible lessons. Joseph Wachira, a keeper at the Ol Pejeta Conservancy in Kenya, says goodbye to Sudan, the last ...