[2015] Kelly Wang (6th Earth Science 2015): Who is Lucy, part II

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by bwilkinson2
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[2015] Kelly Wang (6th Earth Science 2015): Who is Lucy, part II

Part II

Who is Lucy?

-Lucy is an ancient fossil of a hominid species called australopithecus afarensis -She is believed to be just less than 3.18 million years old-Lucy is a female-When she died she was a young adult-Her name is from the song "Lucy in the Sky With Diamonds" by the Beatles when scientists were celebrating her discovery -Lucy was found by Donald Johanson and Tom Gray on November 24, 1974, at the site of Hadar in Ethiopia.

-Humans evolved over the course of 6 million years-There are an estimated 15 to 20 different species of hominids-Humans descended mainly from chimpanzees and apes -One of the earliest known human species is sahelanthropus tchadensis -Bipedalism, the ability to walk on two legs, originated 4 million years ago-Culture, religion, and art developed 100,000 years ago-Agriculture and the first civilizations formed about 12,000 years ago-The last species of humans are homo sapiens

How did Humans evolve over time?

•First species was Sahelanthropus tchadensis •Second was Orrorin tugenensis•Third was Ardipithecus kadabba •Fourth was Ardipithecus ramidus•Fifth was Australopithecus anamensis•Sixth was Australopithecus afarensis •Seventh was Australopithecus garhi•Eighth was Paranthropus aethiopicus•Ninth was Australopithecus africanus •Tenth was Homo rudolfensis•Eleventh was Australopithecus sediba•Twelfth was Homo habilis•Thirteenth was Paranthropus robustus•Fourteenth was Paranthropus boisei•Fifthteenth was Homo heidelbergensis•Sixthteenth was Homo erectus•Seventeenth was Homo neanderthalensis•Eighteenth was Homo floresiensis•Last was homo sapiens


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