Chapter 6 (Primate Biology) Flashcards
Biology In The Present
Prosimians
Lemurs
Lorises
Tarsiers
New World Monkeys
Cebids
Marmosets
Old World Monkeys
Baboons
Colobuses
Guenons
Apes
Gibbons Orangutans Chimpanzees Bonobos Gorillas
Differences between Primates and other mammals
Arboreal adaptations
Dietary Flexibility
Parental Investment
Primate Physical Attributes
Versatile skeletal structure- highly mobile joints Enhanced vision (color, depth) Enhanced sense of touch (dermal ridges)
Primate Parental Investment Attributes
Relatively few offspring at a time
Relatively long periods between births
Period of pre-adult care is long and intensive
All associates with size and complexity of primate brains.
Primate General Information
High level of adaptability Variety of anatomical and behavioral variation Most are diurnal, few are nocturnal Omnivorous diets (most species) Diverse social groupings
Power Grip
A fistlike grip in which the fingers and thumbs wrap around an object in opposite directions
Precision Grip
A precise grip in which the tips of the fingers and thumbs come together, enabling fine manipulation
Preadaptation
An organism’s use of an anatomical feature in a way unrelated to the feature’s original function
Rhinarium
The naked surface around the nostril’s, typically wet in mammals.
Y-5
Hominoids’ pattern of lower molar cusps
Tooth Comb
Anterior teeth that have been tilted forward, creating a scraper
Canine-premolar honing complex
Dental form in which the upper canines are sharpened against the lower third premolars when the jaws are opened and closed
Diastema
A space between two teeth
What gives primates their dietary flexibility?
Multiple tooth types
Reduced number of teeth