• physical anthropologists have defined two ancestreal species
• will answer 2 out of the three topics 
• post cranial bones 
• humurus, ribs, vertabrae, radius and ulna, pelvis, tibia and fibula 
• plicene : 5 million to 2.5 million 
• savannah enviorment 
• a savanna is a mixed woodland, grassland ecosystem 
• savvana's thrive near lake sides 
• pleistocene 
• 2.5 million-10000 years ago 
• homo habalis - handy man is an intermediarie 
• austrolopithecus - homo habilis - homo erectus 
• a walk through the human evolution 
• the reveal fossils have thought scientists tangiingly 
• bipedalism creates minimum amount of exposure to the sun 
• the other is the sight line because you can see higher and further 
• austrolopithecus used pebble tools 
• bonobos stand up 
• astrolopithicus is a soutern ape and an eastern ape 
• can walk bipedaly across grasslands 
• can seek protection within the trees 
• protein rich meet lets them have a larger body and a larger brain 
• gender dimorphism 
• leapords eat astrolopithicus 
• pebble tools are crude 
• 1 or 2 percussive strikes
• evolution of hunting strategies 
• specific social units 
• acheulean hand axe 
• social engagment - cooperative hunting 
• toralba-ambrona, spain excavated in the 1960's 
• broca's area 
• speech production 
• homoerectus speaks 
• arcurate fasiculus 
• raymond dart 
• louis leaky and mary leaky - multiple species of astrolopithesines 
• donald johansne and his discovery of lucy 
• richard leaky and meave leaky