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Natalie Huxtable 3

Early Humans Final Project

Natalie Huxtable

on 31 December 2011

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Transcript of Natalie Huxtable 3

Early Humans Ardipithecus
Ramidus Austarlopitecus
Afarensis Homo
Habilis Homo
Erectus Homo
Neanderthalensis Homo
Sapiens Very Apelike and hairy Omnivores- ate both meat and plants Lived in a wooded
environment bipedal walked on two feet Small brain about 1/3 the
size of modern humans lived in both trees and on the ground small canine teeth manly plant based diet of fruit, leaves, seeds, roots, nuts, and insects still ape-like features, including longer arms Capable of eating a broad range of foods including some tougher foods like leaves, woody plants, and some animal tissue slightly larger brain Scientists thought that they were first stone tool makers- however, may have been a different species living in same place at the same time Lived completly on the ground they used a hand axe earliest evidence of hearth or camprire
used for cooking, socializing, warmth,
and protection Shorter arms compared to torso, and they had longer arms short stocky built for
cold climates ate fish meat plants etc. made and wore clothes They used sophisticated tools for hunting and needles etc. evolved in Africa We trade, use social networks, enjoy art, music and religion We use stone tools, fishhoks,
harpoons,bows/arrows,spears, and sewing needles we have control over fire Walking Upright 1. 4.4 million years ago we could climb both
trees and walk upright.
However, we were mostly bipedal 2. 2.5 million years ago humans developed
our unique curved spine 3. 1.95 million years ago early humans wider hip bones show that
we have given up climbing for walking Tools and food: 1. 2.6 million years ago the first hammerstones were used by early humans. 2. 790,00 years ago humans were using fire for cooking. 3. Later, humans used bone and ivory needles to sew warm, closely fitted clothes. 4.4 million years ago... 3.85 million years ago 2.4 million years ago 1.89 million years ago 200,000 years ago Present day Bodies
1. 6 million years ago early humans had a wide rid cage that
made room for the stomach, intestines, and other organs that
break down food
2. 400,00 years some early humans adapted short wide bodies to conserve heat
3. Early humans had stronger and thicker bones compared to modern humans Brains...
1. Over the course of human evolution, brain sizes tripled. Modern human brains are the largest of primates
2. Homo sapiens larger brain uses most of our energy.
3. With a bigger brain we can collect and process information faster. Soical Life:
1. 2.6-1.8 million years ago early humans shared vital information to survive.
2. With a socil life early humans strengthened groups
3. With a social life and strengthened groups they protected each other from predators language and symbols-
1. language is essential to modern human cultures
2. a lower voice box enables us to make a wider variety of sounds.
3. Once our voice box dropped it became impossible to swallow and breathe at the same time
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