Hominin Evolution (VCE SSCE Biology): Flashcards
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Definition of hominin
Definition of hominin
Member of tribe Hominini; upright-walking ancestors & Homo sapiens
Duration of hominin evolution
Duration of hominin evolution
7 million years
When Homo sapiens appeared
When Homo sapiens appeared
200,000 years ago
What centralised foramen magnum indicates
What centralised foramen magnum indicates
Bipedal locomotion
Oldest recognised human relative
Oldest recognised human relative
Sahelanthropus tchadensis (7 million years ago)
Brain size change: early australopithecines to modern humans
Brain size change: early australopithecines to modern humans
Increased more than threefold
When controlled use of fire began
When controlled use of fire began
Around 800,000 years ago
Definition of cerebrum
Definition of cerebrum
Largest part of brain; sensory, motor, visual & spatial learning
Three major trends in hominin evolution
Three major trends in hominin evolution
↑ brain size, ↓ arm:leg ratio, changing pelvis shape
How pelvis shape changed over time
How pelvis shape changed over time
Became shorter and more bowl-shaped