Scientists in China on Tuesday announced that they have cloned the first healthy rhesus monkey, a two-year-old named Retro, by tweaking the process that created Dolly the sheep. Primates have proved ...

ST. LOUIS — The Saint Louis Zoo swung into spring with a new resident. On Tuesday, the zoo announced it welcomed a new Guereza colobus monkey last month. His name is Ficus, and he's the first monkey ...

Surgeries on primates have become more common in recent years. With a better understanding of how anesthesia affects them, veterinarians can now perform procedures that allow primates to feel no pain ...