Back to Show
Nature
Dolphin Mud Walls
In the shallows of Florida Bay, the fish can be very difficult to catch. Dolphins solve the problem by creating walls of mud that trap the nearby fish.
Support Provided By
Unlock with PBS Passport
53:56
Horseshoe crab numbers drop as their use as bait by the fishing industry increases.
Unlock with PBS Passport
52:58
The explosion of dog types into the roughly 400 breeds and dogs' role in medical care.
Unlock with PBS Passport
52:59
This film explores how the domestication of dogs might have taken place.
Unlock with PBS Passport
52:59
No spider can escape the tireless pursuit of Martin Nicholas.