Ch 12: The History of Life. Specific environmental conditions are necessary in order for fossils to form. 12.1 The Fossil Record.
On the evolutionary origins of altruistic behavior: can selection at the individual level be enough? José A. Cuesta & Anxo Sánchez GISC/Matemáticas Universidad.
Ch 12: The History of Life. The geologic time scale divides Earth’s history based on major past events.
