Ice Age
Currently, we are in the Holocene Epoch*, a warm time between ice ages
http://www.ucmp.berkeley.edu/quaternary/holocene.php
- An epoch is a long period of time marked by some predominant or typical characteristic
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- ice at its height 20K
- ice melted 12K-10K
- over one mile thick in places
- one-third planet covered in ice
- ocean levels dropped 400'
colder and drier climate because ice locked water cut down on snow and rain
- plants and animals that couldn't adapt - perished!!!
- animals migrated in search of food
- humans followed to every cotinent but Antarctica
migrate - a permanent move to a new location
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