Friday, March 9, 2012

Becoming Human 3.9.12

Major changes to artopithicus to the genious

-Leakey found tercamamour
-skeleton is human
hips wider
arms longer
mostly human body shaped
-8 years old
-his growth rate was closer to chimps than humans
-chimps childhood is shorter than humans
-chimps evolving from humans are childhood became longer
-mystery of prolonged childhood?
related to brain size
biggest brain in the animal kingdom
long slow childhood gives brains time to grow
^advantages for us
-tercamamour
900 cubic centimeters
along the way to talk like us
-fragments of scar making from homo rectus
could see which would break against the rock
-bigger brain came with human costs
-brain hungriest part in the body need a lot of calories
-tercamamour needed more food, needs plants and meat
-how did he get his meat?
-run long distance, keep cool by sweating=key to success
-pubic lice is related to gorillas
-3 million years ago (slowly begun to loose body hair)
-need fire to survive
-became social because sitting around fire waiting for food to cook helped to communicate
-homo rectus mother+child vs. chip mother+child
chips no moment without contact
-human mothers leave their child more often than in other apes
-human mothers share with others
-infants look for signs of commitment
-left Africa millions of years ago but might've started earlier than that
-lower jaw found ancient denis (hominid, primitive form of homo rectus)
first humans to leave Africa were more primitive than tercamamour
smaller than tercamamour, small brains, ape like features
5000 from Africa (Indonesia) found bones of tiny human (over 3 ft tall), called homo floresiensis *hobbit*
hobbit's brain size is very small but had stone tools
-island dwarfism
limited amount of food some large animals start shrinking
-part bipedal like lucy and part homo rectus
-likely died in water since his skeleton is so complete
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