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16 Cards in this Set
- Front
- Back
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Humans share 99% DNA with -
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Common Chimps and Bonobos
found by Shipley's DNA hybridization. |
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DNA hybridization =
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the higher the melting temp, the more alike the DNA is
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Traits that distinguish primates from other mammals =
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Arboreal
Five digit hand with thumb Nonspecialization Limb flexibility Nails not claws Visual Acuity Upright Posture |
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Four Main Primates Today =
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-Prosimians (small lemur, tarsiers,lorises, bush babies)
-Hylobatidae (lesser apes - gibbons siamangs) -Pongidae (great apes- gorialla, orang, bonobo, cc) -Hominoidea (humans) |
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Slow Lorsis
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Small and nocturnal
can eat any insect even those rejected by other species |
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Ring-Tailed Lemur Society - dominance and reproduction
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dominance = female dominance hierarchy - 1 alpha and her betas. Male submissive group called 'the bachelors'
reproduction=females in estrus cause the mating frenzy. females prefer to mate with less dominant males. SOCIAL DOMINANCE NOT RELATED TO REPRODUCTIVE SUCCESS |
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How is Ring- Tailed Lemur dominance determined?
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dominance is inherited
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Red Howler Monkey=
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travel little and sleep much to conserve energy. They don't need to travel bc their food supply is abundant.
howling=avoids other groups to prevent conflict and conserve energy. |
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South American Squirrel Monkeys =
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not territorial, females help raise other young. Very bold and curious.
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Extreme sexual dimorphism in blue monkeys=
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intense competition among males to obtain female harems
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Blue monkeys calls =
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cohesion calls are unique to each male - gathers troop members and warn neighboring and solitary males to keep away.
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different theories of the evolution of facial patterns in guenon monkeys =
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-habitants in Africa were once isolated long enough for different mutations to occur
-may have switched from genital markings to facial markings *guenons only breed with others with similar facial patterns |
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Dominance hierarchy in Savanna Baboons =
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varies - involves learned maneuvers, not just size. Like social grooming can form coalitions.
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How does a male baboon know when a female is ready to mate?
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scent pheromones - she presents her hind quarters and a specific posture
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Dominance interactions in baboons =
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highly ritualized, threat postures and mock combat
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Dominance and Submission gestures =
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dominance = yawning and showing teeth
submission= showing rump or lying on ground |
