ATH 352-01

Primate traits & taxonomy

  • branches off from anceestral primate
    • prosimians
    • new world monkeys
    • old world monkeys
    • lesser apes
    • onarng
    • gorillas
    • chimp/bionobo
    • human
  • prosimians (pre-ape): anthropoid (tarsier)
  • strepsirrhine / haplorhine (tarsier = haplo)

primate traits

  • prehensile hands & feet
    • humans: longer thumb than apes/other primates
    • grooming: sense of touch to assure security
  • opposable hallux/pollex
  • nails v. claws
  • convergent obrits
    • rodent: open orbit off to sides
    • prisimian bony ring
    • monkey bony cup
  • color vision
  • reduced sense of smell
  • large complex brain
  • enalrged visual/sensory cortex/neocortex
  • shortened snout/face (reduced prognathism)
  • generalized dentition
  • vertical posture
  • opposable thumb
  • single mammary
  • long life span
  • tropical, arboreal
  • diurnal
  • high sociality
  • K-selection
  • R-selected

Hominoid taxonomy

  • phenotype
    • lesser apes
    • great apes
    • hominids: humans
  • genotype
    • lesser apes
    • hominids
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