6 extinct animals that used to call Colorado home - Out There Colorado

Colorado has changed dramatically over the last few geologic eras. One report from CU Boulder even suggests that 500 million years ago, Colorado had a coastal environment, making it a

Colorado has changed dramatically over the last few geologic eras. One report from CU Boulder even suggests that 500 million years ago, Colorado had a coastal environment, making it a perfect home fo… [+4292 chars]

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