BIOL 1902 Lecture Notes - Lecture 23: Distraction Display, Rodent, Precocial

24 views4 pages

Document Summary

Precocial chic"s leave the nest after hatching you re more developed than altricial birds. Incubation is also a part of parental investment. Incubation of eggs is also a large investment, besides laying the eggs, the birds also have to keep them warm and have special adaptations for doing so. Birds that incubate eggs form heating pads on the underside of their bodies. They develop, on the parts of their breasts special patches called brood patches. Brood patches are simply areas where the feathers fall out, or in some casses like with ducks the female pulls the feathers out to create a bare patch on the belly. The belly skin underneath where these patches form is very wrinkled, is tougher skin and can inflate with blood or water having numerous folds in it and therefore more surface area contact with the eggs.

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