Skeptoid #630: The Apes Who Learned Sign Language
Skeptoid - Podcast készítő Brian Dunning - Keddek
Although many regard Koko as an ape who used sign language, science tells us that ability probably doesn't exist.
Skeptoid - Podcast készítő Brian Dunning - Keddek
Although many regard Koko as an ape who used sign language, science tells us that ability probably doesn't exist.