Animal intelligence is a fascinating subject. In separate segments, a new video from NOVA scienceNOW examines the seeming intelligent behavior of dogs, dolphins and octopus. A fourth segment in the program profiles Irene Pepperberg and her talking parrot, Alex. Pepperberg’s experiences revolutionized scientists’ ideas about animal communication and intelligence.

Here’s a quick preview:

This program, titled “How Smart are Animals?, is available through the WGBY Video Lending Library: I.D. number 2065.  Submit your lending request through the WGBY Video Lending Library website.