How are reptiles capable of generating such a diversity of bright colors? And how is it possible that within a single population of the same species, different individuals exhibit strikingly different ...

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 ...

Two Hispaniolan lizards, Anolis distichus and A. brevirostris, are unusual in showing extensive geographic variation in the color of the dewlap, a structure used in territorial and courtship displays.

MR. WALLACE'S observations in NATURE, vol. xix. p. 4, on a black variety of the common lizard of Capri, as met with on the neighbouring islet of Faraglioni, induces me to refer to a similar appearance ...