Quiz 6 Flashcards
T/F Chimpanzees troops are organized around stable female groups.
F
T/F Baboons have been observed to hunt and kill prey for food.
T
T/F All apes except humans are located in Africa.
F
T/F Infanticide is found in monkeys (e.g. langurs) but not found in apes.
F
T/F Troop-specific transmission of foraging techniques is only found in apes.
F
- T/F Gelada Baboons can forage together in large herds of hundreds of individuals.
T
Which of these is likely to be eaten by a chimpanzee?
a. Colobus monkeys
b. Termites
c. Galagos
d. Ants
e. All of the above
E
Bonobos …
a. defend territory with vocal threats
b. forage in isolation of one another
c. do not have a strong dominance hierarchy
d. lack an estrus swelling
e. compete with gorillas for food resources
C
One major difference in the skeleton of a typical ape and an old world monkey is that …
a. Old World Monkeys have more flexible shoulder joints than apes.
b. Apes have longer thumbs and shorter fingers than Old World Monkeys.
c. Old World Monkeys have shorter arms than leg while apes have longer arms than legs.
d. Ape shoulder blades (scapulae) are on the sides of the ribcage.
e. Old World Monkeys have a more flexible lumbar spine than apes.
C
Which of these forms of locomotion are NOT found in apes?
a. bipedalism
b. brachiation
c. knuckle-walking
d. fist or wrist walking
e. arboreal quadrupedalism
E
Why do gibbons and siamangs sing? I.e. who sings, when, and what is communicated?
Gibbons and siamangs sing to defend their territory. In gibbons, male and female pair bonds sing in duets at least twice a day, while only male siamangs sing.
Why don’t prosimians use bright colors for sexual displays?
Prosimians do not have as developed color vision as other primates.
Describe one example of socially transmitted tool use observed in a monkey species and one in an ape species.
Capuchin monkeys use stones to crack nuts, while chimpanzees (an ape species) also use stones to crack nuts and sticks to fish for ants.
What sexually dimorphic trait develops in territorial orangutan males after sexual maturity?
After sexual maturity, male orangutans develop fat pads and hair pattern on the head and face.
For their body size male chimpanzees have extremely large testes and gorillas have very small testes. How might the differences in mating systems in these species help explain the evolution of these differences in relative testes size?
Testes size is often largest in species whose social structure is formed around multi-male, multi-female systems, like chimpanzees. Testes size are smallest in single-male, multi-female social structures, such as that of gorillas. This is because gorillas are not forced to compete with other males for mates as often as chimpanzees are.
