Introduction to Horned Lizards of North America

* Features detailed species accounts; gives information on horned lizard biology, ecology, and evolution; and describes the role of these fascinating reptiles in mythology, culture, and art

* Covers the United States, Mexico, and Canada, and includes all species of horned lizards

* Features detailed species accounts; gives information on horned lizard biology, ecology, and evolution; and describes the role of these fascinating reptiles in mythology, culture, and art

* Covers the United States, Mexico, and Canada, and includes all species of horned lizards

Preface
Acknowledgments

INTRODUCTION

Time and a Continent
Origins
Places

Diversity of a Form
Form
Diversity
Identity

Identification Aids
Hypothesized Relationships of Living Species
Flow Diagram for Identification
Photographs to Aid Identification
Map of Distribution

SPECIES ACCOUNTS

Eight Species Found in the United States, Canada, and Mexico
Texas Horned Lizard (Phrynosoma cornutum)
Coast Horned Lizard (Phrynosoma coronatum)
Pygmy Horned Lizard (Phrynosoma douglasii)
Short-horned Lizard (Phrynosoma hernandesi)
Flat-tail Horned Lizard (Phrynosoma mcallii)
Roundtail Horned Lizard (Phrynosoma modestum)
Desert Horned Lizard (Phrynosoma platyrhinos)
Regal Horned Lizard (Phrynosoma solare)

Five Species Found Only in Mexico
Giant Horned Lizard (Phrynosoma asio)
Short-tail Horned Lizard (Phrynosoma braconnieri)
Rock Horned Lizard (Phrynosoma ditmarsi)
Mexican-plateau Horned Lizard (Phrynosoma orbiculare)
Bull Horned Lizard (Phrynosoma taurus)
Convergence

NATURAL HISTORY

Cycles of Activities
Days and Seasons
Energy and Growth

Enemies and Defense
Lurking Predators
Levels of Defense
Escaping Notice
Defending Oneself

Coming of Generations
Lizard to Lizard
Eggs
Live Births

Of Humans and Lizards
Yesterday
Today
Tomorrow

Selected References
Additional Captions
Index