In this episode, we examine the science behind man’s best friend û the dog. Find out what makes a greyhound so fast. See how a bloodhound’s nose really works, and the reason that border collies are so intelligent is revealed.

Originally released by Rotfeld Productions, 2015. Streaming video file encoded with permission for digital streaming by Infobase on July 17, 2015.

Credits: Man’s Best Friend: XPLORATION Animal Science (0:07); --Wolf Hunter and Badger Hound (2:32); -- Dog vs. Wolf (3:48); -- Canine Intelligence (3:49); -- The Super Dogs (5:20); -- The Runners (4:50); -- The Runners (4:50); -- The Super Dogs (5:20); -- Canine Intelligence (3:49); -- Dog vs. Wolf (3:48); -- Wolf Hunter and Badger Hound (2:40); .