ARCH 131 Lecture Notes - Lecture 4: Stereopsis, Quadrupedalism, Biological Anthropology
2 Jun 2015
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Common primate traits: nine anatomical traits, prehensibility. Grasping hands with opposable hands ,1st and 2nd: flatten nails, forward facing eyes. Other animals are specific to one habitat. Types of primate locomotion: vertical climbing and leaping, arboreal quadrupedalism, brachiation, terrestrial quadrupedalism, bipedalism, obligates stuck on two feet, generalized dentition, reduced olfactory system, presence of a pestrosal bulla. Bony covering that protects the inner ear: enclosed bony eye orbits, very large brains. Life history traits: single offsptring, give birth one at a time most of the time, k-selected verses r-selected. K-selected: particular focus, only a few offspring. R- selected: frogs . hundreds of offspring, extended ontogeny ( life history average animal life span, we don"t have particular long life span, mammals don"t really known for long life spans. 4 stages of ontogeny: gestation, womb time. Humans are born especially underedevleoped to fit through mother"s canal. Most primates, espically higher primates, is heavily dependent on learning behaviour.
