The Best Father's Day in D.C. (We Ain't Lion)

Want to tell the western lowland gorillas apart? This introductory guide will help you spot each of the six residents of the troop.

This Amphibian Week, take a closer look at what makes these species so wonderfully weird and worthy of our attention.

Primate staff are mourning the loss of Kyle, a 28-year-old male Bornean orangutan who died Jan. 10.