BIOL 1004 Lecture Notes - Lecture 11: Homo Erectus, Woolly Mammoth, Orangutan
20 Apr 2016
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Lecture 11: the diversity and history of life. You must know the dates and taxa in red. Work your way down, you get to a middle point called luca (middle of the tree of life). Luca is a common ancestor for all living things. We assume it existed at some point in time. Estimated age of common ancestry: 0. 2 mya. Most closely related living species: pan (chimpanzee/bonobo) We have a lot of variation in terms of characteristics. A lot is due to environment, development, and genetics (mostly genetics). In fact, if you look at variation amongst human populations 27 populations and 554 individuals you find that the variation can be divided into groups. You have clusters based on continents, showing you can genetically differentiate humans and where they"re from, even different cultural groups. More in africa than anywhere else in the world that"s because it"s where we come from.
