9.7.11 - September 7, 2011 Hominid Encephalization and Its...

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September 7, 2011 Hominid Encephalization and Its Consequences for Habitat Encephalization: increasing of cranial cortex Over time less prominent brow range; larger frontal lobe; canine reduction; reduction of zeugmatic arch (more meet, less chewing) A. Africanus: a forager living in and art of habitat mosaic of forest and grasslands in Southern Africa Pliocene and early Peistocene marked by a diversity of hominoid species (some very robust) Around 2mya species emerge with larger cranial capacity o Classified in genus Homo Under 2mya Homo erectus colonizes new habitats across Eurasia (Lower Pleolithic) o Homo erectus : when discovered first erect group As we see representation of Homo erectus they start moving towards the north, making tools, making fire, possibly lighter skin Skeleton finding: o Boy from Nariokotome – found near Lake Turkana, Kenya Lived 1.6 mya Died at age 12, already 5’4’’ tall o
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9.7.11 - September 7, 2011 Hominid Encephalization and Its...

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