By Sara Amundson and Kitty Block
Samantha was a little over a year old in 1976 when her world changed forever: The tiny chimpanzee was sold to a laboratory in Liberia by a resident of a nearby village. Like many of the other chimps at the lab, her parents had probably been killed by poachers so that Samantha could be sold. At the lab, researchers immediately began using Samantha in experiments.