Comment

Caltech Study: CO2 At Highest Level in 15 Million Years

241
Love-Child of Cassandra and Sisyphus10/20/2009 4:41:46 am PDT

re: #240 AtadOFF

uh… mammals appeared?

[Link: www.ucmp.berkeley.edu…]

The species of which were then later replaced by newer mammals… and then in the Quaternary eventually our current array of animals appeared, adapted to the cooler climate of the Quaternary.