Question:- Walruses that live on islands near Alaska have a thick fat layer under their skin; however, their ancestors did not have a fat layer as thick as it is now. In your own words and based on course material only, describe in detail the process that would have resulted in this population evolving a thicker fat layer over time

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
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Walruses that live on islands near Alaska have a thick fat layer under their skin; however, their ancestors did not have a fat layer as thick as it is now. In your own words and based on course material only, describe in detail the process that would have resulted in this population evolving a thicker fat layer over time. 

Walruses that live on islands near Alaska have a thick fat layer under their skin; however, their
ancestors did not have a fat layer as thick as it is now. In your own words and based on course
material only, describe in detail the process that would have resulted in this population evolving
a thicker fat layer over time
Transcribed Image Text:Walruses that live on islands near Alaska have a thick fat layer under their skin; however, their ancestors did not have a fat layer as thick as it is now. In your own words and based on course material only, describe in detail the process that would have resulted in this population evolving a thicker fat layer over time
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