Understanding biodiversity within species is key to our understanding of why nature works the way it does, say researchers ...

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 ...

Caribbean Anolis lizards exhibit a complex suite of ecological, morphological, and behavioral traits that allow their specialization to particular microhabitats. These microhabitat specialists, called ...

A long, slender lizard moved among trees in a pinyon-juniper woodland on the Colorado Plateau, searching the accumulated debris beneath the trees for grubs, spiders, beetles or any other insects. It ...

Researchers say the newly identified species differs by at least 7% genetically from related lizards.

Lizards, with their extraordinary variations, have helped transform what ecologists thought possible in a single species. Boasting more than 7,000 different types, the reptiles are found around the ...

Researchers have discovered one way that asexually reproducing organisms maintain variation in their DNA. Female whiptail lizards can actually double their own chromosomes during meiosis, according to ...

Names such as Gila monster and Komodo dragon, conjure up images of creatures more suited to realms of science fiction. Yet these mini-dinosaurs are very real, with many of the approximate 6,000 ...