N ATURE U NBOUND L ESSON 5 – E XTINCTION : C AUSES AND C ONSEQUENCES Conservation Mr. Dieckhoff.
What if? Professor Paul Clarke. Are we in the midst of the sixth mass extinction? David Wake and Vance Vredenburg 2008 There have been five mass extinctions.
By: Adam Barr. Once upon a time... Long long ago...
Life History Chapter 12.3 don’t copy. IV. Geologic Time Scale A. Model of history of life on Earth 1. Most change happened slowly 2. Catastrophic events.
Anthropogenic Mass Extinction
