ANTA01H3 Chapter Notes - Chapter 6: Knuckle-Walking, Human Hunting, Ovulation
Document Summary
Chimpanzees, gorillas, orangutans are apes, not monkeys: closest relatives to humans. Limbs and locomotion: tendency toward an erect posture, flexible, generalized limb structure allowing numerous forms of movement, prehensile hands, and sometimes feet (allowing manipulation of objects) Opposable thumb, and in most species, divergent and partially opposable big toe. Tactile pads enriched with sensory nerve fibers at ends of digits. Diet and teeth: lack of dietary specialization (omnivorous) Generalized dentition, allowing primates to eat a variety of food. Senses and the brain (dependent on vision more than other senses: colour vision (nocturnal primates don"t have color vision tho, depth perception. Eyes placed toward front of face (not side) allows for binocular vision (overlapping fields of vision) Visual info from each eye transmitted to visual centers in both hemispheres of brain. Visual info organized into 3-d images by specialized structures in the brain (stereoscopic vision: decreased reliance on sense of smell, expansion and increased complexity of brain.
