Many chameleons have the remarkable ability to exhibit complex and rapid color changes during social interactions. Biologists have now unveiled the mechanisms that regulate this phenomenon. Leer más.

A fun new study showed that the western shovel-nosed snake (Chionactis occipitalis) moves through sand more efficiently than the sandfish lizard (Scincus scincus). Both species are found in sandy habitats; the snake is found throughout the desert regions of southwest U.S. and the lizard is found in the desert regions of north Africa and southwestern Asia. Leer más.