A dozen Oklahoma-born eastern collared lizards now call Arkansas home and, with a little luck, these transplants may be able to replenish a pocket of prime habitat in west-central Arkansas. The ...

SOAKING UP THE SUN: Collared lizards love to bask in the sun. About four dozen of the reptiles were released across glade habitats in northern Arkansas in May. Credit: Little Rock Zoo Nearly four ...

DARDANELLE -- A dozen Oklahoma-born eastern collared lizards now call The Natural State home thanks to a partnership between the Arkansas Game and Fish Commission, the Oklahoma Department of Wildlife, ...

DARDANELLE -- A dozen Oklahoma-born eastern collared lizards now call The Natural State home thanks to a partnership between the Arkansas Game and Fish Commission, the Oklahoma Department of Wildlife, ...

Many factors can contribute to geographic color variation, including natural selection, sexual selection, and genetic drift. In squamates, phenotypic plasticity can also play an important role in ...

In a study published in the September issue of The American Naturalist, A. Kristopher Lappin (Northern Arizona University) and Jerry F. Husak (Oklahoma State University) use the eastern collared ...

Often found sunning itself on a rock or sometimes seen whipping across the countryside, Oklahoma's state reptile is a colorful and speedy character. The eastern collared lizard (Crotaphytus collaris), ...

Lizards are often seen as camouflaged reptiles blending into rocky deserts or dense jungles, but some of them are unusual exceptions. Across the world, there are reptile species that break the mold ...

In territorial species with polygynous mating systems, reproductive success reflects phenotypic variation. At the gross level, such phenotypic variation can include that of body size and weapon ...