ANTH 1001 Jan29

ANTH 1001 Jan29 - ANTH 1001 Jan.29 Charles Darwin Origin of...

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ANTH 1001 Jan.29 Charles Darwin Origin of the species -1859 Natural selection Natural Selection “Survival of the Fittest” Nature does what humans do Basic Processes Biological variation Reproduction/competition – can reproduce before resources. If not enough resources there will be competition Advantageous traits (Selective pressure- any circumstance or phenomenon that affects behavior or fitness of a living organism) Passed on/ accumulate – those that survive will reproduce and has potential to pass change. Over time those traits will accumulate in that population New species? This is how a new species CAN develop, not will but can Fitness – an individual who has offspring who has survived and carried their trait. Contrast Darwin to Lamarck Giraffe neck Darwin says variation in neck length, short necks can’t eat so they die out, while tall neck survive and reproduce and pass on the trait Still variation but neck length longer
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This note was uploaded on 04/07/2011 for the course ANTH 1001 taught by Professor Tague during the Fall '07 term at LSU.

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ANTH 1001 Jan29 - ANTH 1001 Jan.29 Charles Darwin Origin of...

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