Chimpanzees are well known for their extraordinary diversity of behaviors—including using tools for hunting or digging, cracking nuts with stones and using moss as a water-drawing sponge—with some behaviors also exhibiting cultural variation.

San Diegans Ernest and Evelyn Rady have made a record-setting commitment in support of the San Diego Zoo’s Animal Ambassador program. The Radys have pledged $20 million, of which $15 million will be a challenge grant that must be earned with matching donations from other Zoo supporters.

San Diego Zoo Global researchers have confirmed the presence of rare black leopards living in Laikipia County, Kenya. Sometimes called black panthers, the melanistic leopards were filmed in Lorok, Laikipia County, Kenya on remote cameras that were set up as part of a large-scale study aimed at understanding the population dynamics of leopards in Mpala and Loisaba Conservancies.