09/14/2015 Primate Feeding Adaptations

09/14/2015 Primate Feeding Adaptations - ○ procumbent...

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Primate Feeding Adaptations Lecture 09/14/2015 Dentition 1. Phylogeny 2. Diet 3. Common in fossil record Incisors: Ingestion Canines: sexual dimorphism, social behavior male = female: monogamous social system male > female: polygynous social system → toothcomb: lower incisors and canines → aye-aye: evergrowing incisors, long fingers for foraging Premolars and Molars: chewing Dietary Categories Insectivory pointed cusps (crack exo-skeleton) sharp shearing crests relatively small primates less than 500 grams Gummivory toothcomb
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Unformatted text preview: ○ procumbent incisors → marmosets have specialized anterior teeth ● ±rugivory ○ large/wide incisors ○ low, rounded molar cusps ○ thick enamel ○ broad range of body sizes (30g - 80kg) → owl monkey ● ±olivory ○ small incisors ○ well-developed molar shearing crests ○ complex stomach, large cecum ○ thin enamel ○ elongated gastro-intestinal tract to increase digestion time ○ larger primate more than 500 grams Protein Energy Insects High High Leaves High Low Fruit Low High...
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