About 8,000 years ago, the relationship between cows and man began with the revolutionary advent of domestication in Mesopotamia, the Indus River Valley, and Africa. Discover how cows have altered human life, human biology, and the geography of the world.
expiredpublic1414995219004cove1414 Full Episodeunavailabledisabledshowfalse14905Chimp Makes Orphaned Genet Cat His Pet Just like humans, chimps keep pets! 2017-02-01 20:00:00http://www.pbs.org/wnet/nature/files/2017/01/mezzanine_246-480x270.jpg2365934990cove14901Crocodile Mom Scoops Up Babies in MouthA female crocodile carries her babies to safety between her deadly teeth. 2017-02-01 20:00:00http://www.pbs.org/wnet/nature/files/2017/01/mezzanine_735-2-480x270.jpg2365935022cove