ANTH 1001 3-13

ANTH 1001 3-13 - (Macaca silenus)

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(Macaca silenus) Subfamily Colobinae: colobine monkeys Diet is folivory: specialized diet of mature leaves Anatomy: Taxanomic infraorder- Catarrhini OW Monkeys distributed in Africa and Asia OW Monkeys Apes Arms and legs more equal in length Arms longer than legs Narrow thorax Broad thorax Less mobile wrist Mobile, flexible wrist More lumbar vertebrae than apes Fewer lumbar vertebrae than OW monkeys Non-prehensile tail (prehensile= for grasping); tail for balancing instead No tail Dental formula: 2,1,2,3/2,1,2,3 (same) Dental formula: 2,1,2,3/2,1,2,3 Bilophodont cusp pattern on lower molars 4 cusps arranged at the four corners of the tooth, with a crest connecting the front cusps, and another crest connecting the back cusps Y-5 cusp pattern on lower molars Generalization- species with a polygynous (whether 1 M, many F or 1 F, many M) social organization show sexual dimorphism in both canine tooth size and body size ; males are larger than females . Sexual dimorphism evolves in polygynous species because males compete among themselves for rank in a dominance hierarcy (multiple-male polygyny) or for control of a group of females (single-male
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This note was uploaded on 06/14/2009 for the course ANTH 1001 taught by Professor Tague during the Spring '07 term at LSU.

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ANTH 1001 3-13 - (Macaca silenus)

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