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Introduction to Horned Lizards of North America$
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Wade Sherbrooke

Print publication date: 2003

Print ISBN-13: 9780520228252

Published to California Scholarship Online: March 2012

DOI: 10.1525/california/9780520228252.001.0001

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PRINTED FROM CALIFORNIA SCHOLARSHIP ONLINE (www.california.universitypressscholarship.com). (c) Copyright University of California Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in CALSO for personal use.date: 19 September 2021

Cycles of Activities

Cycles of Activities

(p.74) Cycles of Activities
Introduction to Horned Lizards of North America

Wade C. Sherbrooke

University of California Press

This chapter discusses the activity patterns of horned lizards, including their thermoregulatory behavior, dietary preferences, and hibernation. Horned lizards orient their bodies in relation to the sun's rays and bask under the sun for long periods. The warmth of the sun's rays and high temperatures enable them to properly digest their food. Different species of horned lizards can tolerate different body temperatures. The flat-tail horned lizard (Phrynosoma mcallii) inhabits the hottest desert and can withstand higher temperatures than other desert-inhabiting species. The Texas horned lizard (Phrynosoma cornutum) inhabits semiarid areas in warmer regions, while the short-horned lizard (Phrynosoma hernandesi) lives in cool, high mountain elevations and northern latitudes.

Keywords:   activity patterns, thermoregulatory behavior, dietary preferences, hibernation, flat-tail horned lizard, Phrynosoma mcallii, Texas horned lizard, Phrynosoma cornutum, short-horned lizard, Phrynosoma hernandesi

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