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Orangutans -- Apes

Orangutans -- Apes. Found in heavily forested areas of Borneo and Sumatra. Almost completely arboreal. males = 200 lbs, females = 100 lbs Pronounced sexual dimorphism. Solitary Principally FRUGIVOROUS (fruit-eating). Gorillas -- Apes. Largest of the living primates .

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Orangutans -- Apes

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  1. Orangutans -- Apes • Found in heavily forested areas of Borneo and Sumatra. • Almost completely arboreal. • males = 200 lbs, females = 100 lbs • Pronounced sexual dimorphism. • Solitary • Principally FRUGIVOROUS(fruit-eating).

  2. Gorillas -- Apes • Largest of the living primates. • Confined to forested regions of central Africa. • Males can weigh up to 400 pounds, females 200 pounds. • Primarily terrestrial, using a posture called “knuckle –walking”. • Groups consist of one large silverback male, a few adult females, and their subadult offspring.

  3. Chimpanzees -- Apes • Found in equatorial Africa. • Anatomically similar to gorillas particularly in limb proportions and upper-body shape. • Locomotion includes knuckle-walking on the ground and brachiation in the trees. • Eat a variety of plant and animal foods. • Large communities of as many as 50 individuals.

  4. Bonobos -- Apes • Only found in an area south of the Zaire River. • Population is believed to only number a few thousand individuals. • Exploit the same foods as chimps, including occasional small mammals. • Male-female bonds constitute the societal core. • Sexuality includes frequent copulations throughout the female's estrous cycle.

  5. Gibbons and Siamangs…also apes!! • Found in the tropical areas of southeast Asia. • Adaptations for brachiation may be related to feeding while hanging from branches. • Diet is largely fruit with leaves, flowers, and insects. • Basic social unit is a monogamous pair and their offspring. • Males and females delineate their territories with whoops and “songs”. White-handed Gibbon Siamang

  6. Humans (Homo sapiens) • The only living species in the family Hominidae. • Human teeth are typical primate teeth. • Two incisors, one canine, two premolars, and three molars on each side in both upper and lower jaws: 2.1.2.3 (32 teeth total) • Dependence on vision for orientation to the world • Flexible limbs and grasping hands • Omnivorous diet • Cognitive abilities are the result of dramatic increases in brain size. • Bipedal

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