ANT333Y1 Lecture Notes - Lecture 7: Prehensile Tail, Howler Monkey, Woolly Monkey

41 views3 pages
School
Department
Course
Professor

Document Summary

Ant 333 lecture #7 prehensile tails & suspension in primates. Evolution of grasping hands & feet & a divergent hallux bearing flattened nail occurred early in primate evolution -+ Initial changes in primate prehension were associated with exploitation of food resources such as ripe fruits, floral nectar, & mobile insect prey located on small, flexible supports. Hold branch between 2nd and 3rd digits. Convergent evolution, no common ancestor with prehensile tail. A small set of new world primate genera (ateles, alouatta, cebus, brachyteles, & lagothrix) possess a prehensile or grasping tail. Based on genetic & anatomical evidence, prehensile tails evolved twice in platyrrhine evolution: once in common ancestor of atelines (alouatta, ateles, brachyteles, & lagothrix) & again in lineage leading to cebus. Because these taxa have not shared common ancestor for ca. Cebus & atelines best interpreted as parallel evolutionary adaptations. Prehensile tail primates have heavier tails and variable tail lengths.

Get access

Grade+20% OFF
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related Documents