Midterm #2

Question 1

Platyrrhines vs Catarrhines

Answer 1

Patyrrhines - new world monkeys, “flat nosed”

Catarrhines - old world monkeys, apes, humans, “hook-nosed”

Question 2

Strepsirhines vs. Haplorhines

Answer 2

Strepsirhines - lemurs, and lorises

Haplorhines - everything else

Question 3

What is a primate?

Answer 3

• typical arboreal inhabitants of tropical and subtropical ecosystems
• tendency towards erect posture, numerous forms of locomotion, prehensile hands for more dexterity, nails instead of claws, enhanced touch on fingers, variable diet (omnivorous) , generalized dentition, reliance on vision over smell, eyes placed forward for depth perception (stereoscopic vision), longer fetal development, longer childhood

Question 4

Apes vs Monkeys

Answer 4

Apes

• no tail
• large brain
• tools for nut-cracking, hunting, play
• ground and tree living
• lifespan: 60 years
• diet: omnivorous (including monkeys)

Monkeys

• tail: short on old world monkeys, long
• smaller brain
• no tools
• live almost entirely in trees
• lifespan: 30 years
• diet: omnivorous (including small invertebrates)

Question 5

Time Periods and Major Primates from Each

Answer 5

• Paleocene (66-55mya) 11 m.y.
• Eocene (55-34mya) 21 m.y.
• Oligocene (34-24mya) 10 m.y.
• Miocene (24-25mya) 10 m.y.
• Pliocene (5-1.8mya) 3.2 m.y.
• Pleistocene (1.8m.y. - 10kya) 1.79m.y.
• Holocene (10kya to present)

Put Eggs On My Plate Please Henry