TT1 PP

Question 1

What are two families found in the infraorder Lorisiformes?

Answer 1

Lorisidae and Galagidae

Question 2

What are some strepsirhine characteristics that Tarsiers don’t have? (4)

Answer 2

Tapetum
Rhinarium
Grooming claw
Dental comb

Question 3

What are some characteristics shared between all prosimians? (4)

Answer 3

Nocturnal + big eyes
Independently mobile ears
Immobile upper lip + inexpressive face
Reliance on olfaction

Question 4

What is the main mode of locomotion for prosimians? What habitats do prosimians tend to live?

Answer 4

Vertical jumping and clinging; arboreal - found in trees

Question 5

Define adaptive radiation

Answer 5

The diversification of an evolving lineage due to new ecological niches

Question 6

What is the genus name for an Aye Aye

Answer 6

Daubentonia

Question 7

What are the differences between smaller and larger lemurs?

Answer 7

Smaller lemurs are nocturnal, insectivorous and solitary.

Larger lemurs are diurnal, gregarious and have diverse diets.

Question 8

What sets large lemurs apart from other prosimians?

Answer 8

Only diurnal prosimians

Question 9

Describe the lemurs’ mating pattern.

Answer 9

Highly seasonal breeders; females may only be fertile for a few days.

Question 10

Are male or female lemurs dominant?

Answer 10

Female lemurs

Question 11

What is the difference between lemurs and lorises gestation and post-natal development?

Answer 11

Lemurs have shorter gestation but longer post natal investment.

Question 12

What is the genus name for a Tarsier?

Answer 12

Tarsius

Question 13

What traits do Tarsiers have that resemble prosimians?

Answer 13

Vertical jumping, nocturnal, brain structure

Question 14

What traits do Tarsiers have that resemble anthropoids?

Answer 14

No tapetum, rhinarium or dental comb. Post-orbital closure.

Question 15

Why are tarsiers considered living fossils?

Answer 15

Fossil structures 45-35mya fairly similar

Question 16

How can we visually distinguish a platyrrhine and catarrhine? Hint: Nose

Answer 16

P: nostrils sideways
C: nostrils point down

Question 17

What epoch did the genetic split between catarrhines and platyrrhines occur?

Answer 17

Oligocene

Question 18

What are some features of the family callitrichidae? (4)

Answer 18

Claw like nails, male investment in offspring, monomorphic, twins

Question 19

What are the 5 general types of cebidae monkeys?

Answer 19

Titi, Squirrel, Capuchin (Cebus), Owl (Aotidae), Uakari (Pitheciidae)

Question 20

What are the four general Atelidae monkeys? (Genus and common)

Answer 20

Muriquis (Brachyteles)
Howler (Alouatta)
Spider (Ateles)
Woolley (Lagothrix)

Question 21

What are some characteristics of the howler monkey? What other primate is the howler similar to?

Answer 21

Larger body -> lower BMR, folivorous diet, smaller relative brain, small home range, small cohesive group
Similar to Gorilla

Question 22

What are some characteristics of the spider monkey? What other primate is the spider close to?

Answer 22

Smaller body -> higher BMR, frugivorous diet, bigger relative brain, active, bigger home range, larger, fission-fusion group
Similar to chimpanzee

Question 23

What morphological feature do Colobines have to help them adapt to their diet?

Answer 23

Sacculated stomachs - break down leaves(cellulose) and seeds

Question 24

List a few cercopithcines with their genus and common names. (6)

Answer 24

Baboon (papio)
Macaques (macaca)
Mandrills (mandrillus)
Gelada (theropithicus)
Geunon (cercopithicus)
Patas (erythrocebus)

Question 25

What are some characteristics of the cercopithcinae? (4)

Answer 25

Sexually dimorphic, diverse diets, mostly terrestrial, diverse habitats

Question 26

What morphological feature do cercopithecines have to help them adapt to their diet? What are its 2 benefits?

Answer 26

Cheek pouches - helps break down unripe fruit, might help with competition and predation.