BIOLOGY 1M03 Lecture Notes - Lecture 13: Cenozoic, Thumb, Knuckle-Walking
18 Feb 2015
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Lecture 13/14 - chapter 9: from tree shrew to ape. Human evolution began with the origin of cellular life around 3. 8 billion years ago. If the entire evolution of the planet occurred in one day, mammals would have. Humans would have diverged from chimpanzees in the last 2 minutes of this day. Humans would have dispersed out of africa in the last 2 seconds of this day. Your life would be 400 millionths of a second of this day. This entire semester would take 6 millionths of a second of this day. As you know major events in the history of life can be summarized in a timeline. Mesozoic era - mammals and angiosperms (flowering plants) first appeared. Most extant mammals diversified in the cenozoic era (age of mammals) The cenozoic era (65 mya-present) saw spectacular radiation of mammals. This was coupled in time and perhaps associated with the diversification of.
