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Nature
Clash: Encounters of Bears and Wolves
Each time two great predators meet, one of them will have a tactical advantage - but which one, and when? 2/27/2011
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51:14
In 1893, a bounty hunter journeyed to New Mexico on a mission to kill a dangerous outlaw.
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53:56
Horseshoe crab numbers drop as their use as bait by the fishing industry increases.
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52:58
The explosion of dog types into the roughly 400 breeds and dogs' role in medical care.
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52:59
This film explores how the domestication of dogs might have taken place.
