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Anthro lecture Jan 20th.pdf

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Sherry Fukuzawa

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Anthro lecture Jan 20th Primate: Our Contemporary Relatives and the Basics of Primatology Primatology – the study of non-human primate biology and behaviour Analogies – structures that are superficially similar – share a similar function – built from different parts – do not pass through similar stages during embryonic development – organisms do not share a common ancestor – has smiler function but goes thorough different stages embryonically, illustration of common ancestor – ex. human and a dog (bones kind of look same but have different functions) Homologies – Structures possessed by 2 different organisms that arise in similar fashion – pass through similar stages during embryonic development – organisms that share a common ancestor – may serve different functions – an illustration of a common ancestor or evolutionary relationship – ex. wings or birds and wings of bats All Primates: Kingdom Animalia Phylum Chordata Subphylum Vertebrata Class Mammalia Order Primate Primate Characteristics – aboreal- generalized limbs (can live in a tree) – stereoscopic vision (3D vision) (to judge distance) – binocular vision (your eyes are facing in the same direction but they see everything on two slightly different plains) – Colour vision (helps with depth perception) – Fovea centralis (good peripheral vision) – Highly developed sense of touch (sensitive pads on fingers and toes that allow for grip) – Enlarged, complex brain – Retention of less specialized dentition (more omnivores, have different aspects to diet) Primate Skeleton – skull features – high vaulted cranium – forward shifted foramen magnum – reduced snout – post orbital car (enclosed eye socket) – retention of clavicle (collarbone) – brachiation – pentadactyly (possessing 5 digits) – prehensibility Reproduction and Care of Young – able to breed throughout the year – reduction in the number of offspring born at one t
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