Four of the endangered animals were rescued last year from the U.S. southern border by federal authorities, according to the ...

In particular, the St. Louis Zoo and AZA are advocating for the passage of the Captive Primate Safety Act to regulate the ...

At the Saint Louis Zoo in Primate Canopy Trails, a series of walkways and paths take visitors up close with four new, ...

Four young spider monkeys are now happily adjusting to life at the zoo after being taken from smugglers at the southern U.S.

Four endangered Mexican spider monkeys seized from smugglers near the U.S. southern border have found a home at the Saint ...

A 12-day-old baby black and white colobus monkey stays within easy grasp of its mother, Roberta, inside the primate house at the St. Louis Zoo on Wednesday, July 11, 2012. Colobus monkeys are ...

Four endangered Mexican spider monkeys seized from smugglers near the U.S. southern border are now living at the Saint Louis ...