ZoologyLesson 1 of 1 in the course Vertebrates

Primate Adaptations, Diversification, and Human Evolution

5 flashcards · 5 quiz questions · 5 match pairs · 5 fill-in sentences · English

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Summary

Primates include lemurs, tarsiers, monkeys, apes, and humans. Their shared traits reflect an evolutionary history shaped by life in trees, while differences between major primate groups reveal varied adaptations to their environments.

All primates descended from tree-dwelling ancestors. Their arboreal heritage is reflected in bodies suited to climbing and, in some species, brachiation—swinging through trees using the arms.

All flashcards

Brachiation
A form of movement in which an animal swings through trees using its arms.
Stereoscopic vision
Vision using overlapping fields from both eyes to help perceive depth and distance.
Strepsirrhini
The wet-nosed primate group, including lemurs, lorises, bush babies, and pottos.
Haplorhini
The dry-nosed primate group, including tarsiers and simians.
Hominin
A species on the human branch that is more closely related to humans than to chimpanzees.

Quiz questions

  1. What does a rotating shoulder joint enable in primates?Answer: Broad movement of the arms.
  2. Which trait is common among New World monkeys?Answer: Most have prehensile tails and all are arboreal.
  3. When moving quadrupedally, how do apes typically support their upper bodies?Answer: On their knuckles.
  4. Which dental feature is associated with Paranthropus?Answer: Large grinding teeth with heavily worn molars.
  5. How is mitochondrial DNA typically inherited in humans?Answer: Through the maternal line, via mitochondria in the egg.

Based on Biology 2e by Mary Ann Clark, Matthew Douglas, Jung Choi (OpenStax), licensed CC BY 4.0. Adapted into a summary, flashcards and quizzes.

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