20 - BIO LECTURE NOTES Human Evolution Key concepts o...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
BIO LECTURE NOTES (2/27/09) Human Evolution Key concepts o Chimpanzees are our closest living relatives, followed by gorillas o There were at least two major upright hominid lineages, which may have included multiple species each o The latest data strongly support recent African proliferation of modern humans Humans evolved from Old World apes, which split from the rest of the primates about 20 million years ago o New World monkeys have prehensile tails o Chimps and gorillas share a rare adaptation, knuckle walking o Great apes (family Hominidae) include orangutans, gorillas, chimpanzees, and humans Hominid phylogeny o Chimpanzees are our closest living relatives, followed by gorillas o There are several possible ways this phylogeny can be ordered o Knuckled walking might suggest gorilla and chimps should be placed together o o there were at least two major upright hominid lineages, which may have included multiple species each o Gracile species had smaller teeth and jaws, probably omnivores
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/16/2009 for the course BIOL BIOL taught by Professor Johnson during the Spring '08 term at Aberystwyth University.

Page1 / 2

20 - BIO LECTURE NOTES Human Evolution Key concepts o...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online