| Amblyrhynchus cristatus - Marine Iguana: Biology and taxonomy of this Galapagos Islands reptile. |
| Crazy Crotaphytus: Photos of North American collared lizards of the genus Crotaphytus. |
| Galapagos Land Iguana - Conolophus: Biology, evolution, and conservation status. |
| Galapagos Marine Iguana - Amblyrhynchus cristatus: Extensively illustrated discussion of biology and distribution. |
| Horned Lizard Conservation Society: Devoted to discovering why the Texas Horned Lizard (Phrynosoma cornutum) has declined in numbers so dramatically in recent years, and what can be done to reverse the process. |
| Horned Lizards: The biology of the bizarre, spiny, ant-eating, Phrynosoma of North America. |
| Iguana iguana Bibliography: Bibliography of studies concerned with the green iguana (Iguana iguana) - general biology, ecology and environment, behavior and sociality, breeding and nesting, captive husbandry and veterinary care. |
| International Iguana Society: A non-profit, international organization dedicated to the preservation of the biological diversity of iguanas through habitat preservation, active conservation, research, captive breeding, and dissemination of information. |
| Marine Iguanas: Overview of marine iguana habitats, feeding patterns, and behavior. |
| Melissa Kaplan's Herp and Iguana Care Information Collection: Extensive list of articles and resources for many aspects of captive iguana care. Includes cross references to other research. |
| Sceloporus woodi (Florida Scrub Lizard, Scrub Pine Lizard): Narrative, including geographic range, physical characteristics, natural history, economic importance, and list of references. |
| Sympatric Horned Lizards: The food habits of the Horned Lizards (Phrynosoma modestum and P. cornutum) that coexist in a creosotebush desert grassland community in southeastern Arizona. |
| The Jamaican Iguana Page: A page dedicated to the conservation of these wonderful lizards. Also has a forum pertaining to all subspecies of Iguanas and Iguana breeding, or keeping. |
| The National Iguana Awareness: To educate the public on the care of green iguanas and to make others aware of the injustices against iguanas that have been largely ignored by the public in years. |
| West Indian Rock Iguanas: AZA Species Survival Plan Profile. |
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