Some 800,000 years ago , the Earth's climate cooled, and huge glaciers invaded what is now the Western United States.Areas once teeming with life became uninhabitable to many species.But most of them weren't driven to extinction.Instead, prehistoric climate refugees migrated to regions that for one reason or another were buffered from the cold and the ice - from the Southwestern desert lowlands to sheltered, temperate nooks in the Pacific Northwest.
#back #development #researchers #climate-change #temperatures #extreme-weather #biodiversity #pacific-northwest
[
add
]
[
|
|
...
]