ANP 201 Lecture Notes - Lecture 6: Treeshrew, Dentition, Stereoscopy
Document Summary
*primates are similar to humans physically and behaviorally due to a common ancestry. *the study of primates helps us understand humans from an evolutionary perspective. *primates are adapted to life in the trees (arboreal adaptation) *primates eat a variety of foods (dietary plasticity) *primates invest a lot in a few offspring (parental investment) Clavicle acts as a strut to keep upper limbs to sides of body. Opposable thumb (or big toe) allows digit to touch other fingers. Smell is a secondary sense in most primates. Loss of rhinarium (wet nose), except in some prosimians. Forward facing eyes with overlapping visual fields allow stereoscopy. Post orbital bar provide stability for the eye orbits. Friction skin (dermal ridges) on the palms and soles. The ends of fingers and toes are sensitive and allow for. *primates have a distinctive spinal column with give vertebral types (cervical, thoracic, lumbar, sacrum, coccyx) *it is reflected in the primate dental morphology.
