Anthro 1 Final 2025/2026 – UCLA Comprehensive Exam Review with Verified Answers

Anthro 1 Final 2025/2026 Exam
Questions with Detailed Verified
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What are the characteristics of catrarrhines? - 🧠 ANSWER ✔✔• 2123 dental

formula

• ectotympanic tube

• narrow nose w downward facing nostrils

• broader palate

• y-5 molars

• larger brain

• adaptations for brachiation

• NO TAIL


How many living genera of hominoids are there? - 🧠 ANSWER ✔✔-

Hylobatids



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,- Hominids


What are the anatomical adaptations in gibbons? - 🧠 ANSWER ✔✔•

Specializations for brachiation, small body size, bipedal when on ground

What is the social organization in gibbons, and do you expect to see

significant sexual dimorphism with this type of social organization? Why or

why not? - 🧠 ANSWER ✔✔• Monogamy, little sexual dimorphism, duet

singing

What is the anatomy of the orang cranium, and how is it different from the

African apes? - 🧠 ANSWER ✔✔• Sagittal crest, tall close together orbitals,

concave (dish shaped) face, large sexually dimorphic canines

What is the social organization in orangs? What kind of dimorphic changes

do you see in orang males during growth and with age? - 🧠 ANSWER ✔✔•

Solitary, adults spend little to no time foraging together

• male defends territory that includes several female territories (dominant

male?/multi-male multi female)

• high sexual dimorphism: body size, canine size, fat and hair pattern on

male head and face

• mating encounters often forced

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,What are the geographic locations in Africa of the great apes? - 🧠

ANSWER ✔✔• Chimpanzees and gorilla ranges overlap


• Bonobo and common chip ranges are separated by congo river

Why do we not have a lot of fossils of early African great apes? - 🧠

ANSWER ✔✔• Tropical forest conditions do not favor fossilization


What dietary adaptations do gorillas have? - 🧠 ANSWER ✔✔• Folivorous


• Large undefined feeding territories

• Large digestive systems

• Molars with shearing crests

• Large mandibles, zygomatic arches, sagittal crests

What is the social organization of gorillas? What are the sexual dimorphic

differences in gorillas? - 🧠 ANSWER ✔✔• Single male polygyny - dominant

silver back male

• Female defense

• Occasional female abduction

• Males leave natal group



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, • High sexual dimorphism: larger body, larger sagittal crest, larger canines,

fat pads and large muscles for threat display

• Mobile female group foraging


How do gorillas and chimps locomote? - 🧠 ANSWER ✔✔• Occasional

bipedalism

• Arboreal and terrestrial

• Males = terrestrial

• Quadrupedalism - knuckle walking

What is the social organization of common chimps? How is it different from

baboons? - 🧠 ANSWER ✔✔• Multi male multi female


• Fission - fussion

• Male cooperation - territory defense, female leaves natal group, male

stays in natal group (cooperating males = relatives), moderate sexual

dimorphism

- Baboons have complex social organizations with dominance hierarchies,

multi-male multi female, fiercer fighting over females in estrus




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