Access to this video is a benefit for members through PBS Passport.
Up Next
Back to Show
Nature
A Conversation with Koko
Season 17
Episode 10
Koko is a captive-born, western lowland gorilla, who has learned how to talk by learning over 1000 words in American Sign Language. Koko and Dr. Penny Patterson, Koko’s teacher, caretaker and interpreter, are science celebrities, who together have proven that intelligence, self-awareness, memory and emotions are not the sole realm of “human” animals.
Sign up now for inspiring and thought-provoking media delivered straight to your inbox.
52:59
Take a global tour of the most fascinating members of the modern horse club.
Unlock with PBS Passport
53:29
Travel around the world to uncover the history of mankind’s relationship with the horse.
Unlock with PBS Passport
53:29
Join Sir David Attenborough as he uncovers a new species of Ichthyosaur.
Unlock with PBS Passport
53:28
It's a critical time for cat research and conservation.
Unlock with PBS Passport
53:28
Discover how cats have conquered the world, thriving in almost every landscape on Earth.
Unlock with PBS Passport
53:28
Discover what makes big cats among the world’s most diverse and successful predators.
Unlock with PBS Passport
52:59
Explore the secret lives of animals through their eyes.
Unlock with PBS Passport
53:29
Explore the secret lives of animals through their eyes.
Unlock with PBS Passport
53:28
Explore the secret lives of animals through their eyes.
52:58
Discover how cats first crossed from Asia into North America and became the top predators.
53:29
Discover how the first cats arose in the forests of Asia and later came to conquer Africa.
Unlock with PBS Passport
53:55
What happens when people are reunited with wild animals they forged bonds with long ago?