Campbell Biology (11th Edition)

Published by Pearson
ISBN 10: 0-13409-341-0
ISBN 13: 978-0-13409-341-3

Chapter 56 - Test Your Understanding - Level 3 - Synthesis/Evaluation - Page 1284: 8


The causes of the known major mass extinctions are not all known, but they generally relate to a global change in the atmosphere and climate so great that a large portion of all species at the time could not adapt readily enough, causing many species to die off.

Work Step by Step

Recovery can take anywhere from 5 to 30 million years, depending on the cause and extent of the damage done. At a minimum, this is dramatically longer than humans have even existed.
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