Rasmussen Movies
- 1989
Animal Behavior
Animal Behavior2.31989HD
Biologist Alex Brisco develops a new method to communicate with chimpanzees. Instead of using machines, she teaches the chimps simple sign language. H...
2.31989HD
Biologist Alex Brisco develops a new method to communicate with chimpanzees. Instead of using machines, she teaches the chimps simple sign language. H...