ANT101H5 Lecture Notes - Lecture 4: Grooming Claw, Fovea Centralis, Foramen Magnum
Document Summary
Primates: our contemporary relaives & the basics of. The study of non-human primate biology & behavior. Do not pass through similar stages during embryonic development. Organisms do not share a common ancestor. Structures possessed by 2 diferent organisms that arise in a similar fashion. Pass through similar stages during embryonic development. Reducion in the number of ofspring born at one ime to a female. Longer period of infant dependency on the mother. Suborder: strepsirhini (lemurs & lorises) irst two ivolve. Rhinarium (leshy pad at end of the nose) Nocturnal: haplorhini (tarsiers, monkeys, apes & humans) Compared to strepsirhini: generally larger body size, larger brain, rounded skull, eyes rotated to the front, bony plate at back of eye orbit, no rhinarium, chisel like incisors, increased parental care, increased maturation, more mutual grooming. Primiive features: small body; grooming claw; large ears; unfused mandible, nocturnal insectivore, stable pair bonds. Haplorrhine features: no rhinarium, eye sockets enclosed in bone, but strepserhini"s don"t.
