the mammalian order primates includes lemurs,shaunab.info › biology › lecture › chap09lect ›...
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• The mammalian order Primates includes lemurs, tarsiers, monkeys, and apes
• Humans are members of the ape group
Primates
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Have a BackboneLive births; mammary glands
Eyes in front; opposable thumbs
Bipedal locomotion; large brain
Uses tools; little body hair
Social interaction; use of language
Eukaryotic cells, digestive chambers
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47 million yr. old fossil earliest complete primate fossil~ 2 feet long
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“Living Primates”
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A phylogenetic tree of primates
ANCESTRALPRIMATE
Lemurs, lorises,and bush babies
Tarsiers
New World monkeys
Old World monkeys
Gibbons
Orangutans
Gorillas
Humans
Chimpanzeesand bonobos
Anthropoids
70 60 50 40 30 20 10 0Time (millions of years ago)
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Hominid Phylogeny
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New World monkeys and
Old World monkeys
New World monkey:spider monkey
Old World monkey:macaque
(b)
(a)
New World and Old World monkeys underwent separate adaptive radiations during their many millions of years of separation
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Apes(a) Gibbon
(b) Orangutan
(e) Bonobos(d) Chimpanzees – a cousin?
(c) Gorilla
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