ANT-1430 Lecture Notes - Lecture 5: Color Vision, Genetic Drift, Depth Perception
Document Summary
Homologous traits that appear early in the evolution of a lineage. Homologous traits that appear later in the evolution of a. Varied dentition (the eruption or cutting of the teeth; teething) Some primates do have claws as well as nails (ex. lemurs) Specific motions used to assist in daily life (human bipedalism, aye aye finger and ears) Arboreal adaptations - evolved for life in the trees. Provides a less fragmented view of what"s in front of you. Provides depth perception, a direct derived trait of arboreal adaptation. Primates have three cones vs. most other animals two. However, some reptiles and crustaceans have many more cones in their eyes (but lack depth perception) All have incisors, canines, premolars, and molars. Extensive female parental investment due to birth dependence. Newborn primates often can"t feed themselves or move themselves away from danger. Larger brains in comparison to body size. Large ears in comparison to body size. Often solitary (but see many lemur species)
