'In the 1970s sign language was taught to Koko the gorilla & Washoe, one of these'
chimpanzee
SCIENCE: In the 1970s sign language was taught to Koko the gorilla & Washoe, one of these
In the 1970s sign language was taught to Koko the gorilla & Washoe, one of these
In the 1970s sign language was taught to Koko the gorilla & Washoe, one of these
SCIENCE
chimpanzee
SCIENCE