This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American When it comes to mating, males rarely ...

Cotton-top tamarin society is built on a very clear hierarchy, with females on top. An alpha female–often the strongest in the group–selects the best male, and then releases a hormone that prevents ...

SPRINGFIELD, Mo. (KY3) - Dickerson Park Zoo announced the birth of cotton-top tamarin triplets. The birth happened July 29. Mom, Kiki, is five years old, and dad, Super Cutie, is 16. The cotton-top ...

They’re cute, they’re helpful, they’ll carry your babies. What’s more, several males are happy to club together in order to serve a single female. Female Geoffroy’s tamarins sure do have it easy. The ...