Snakes and lizards have distinct body movement patterns. Lizards bend from side to side as they retract their legs to walk or run. Snakes, on the other hand, slither and undulate, like a wave that ...

Mexico's Jesus lizard got its name from an unusual ability to run over water on its hind legs, its body semi-erect and its front limbs dangling in the air. The spiny-tailed iguana and bearded dragon, ...

When early tetrapods transitioned from water to land the way they breathed air underwent an evolutionary revolution. Fish use muscles in their head to pump water over their gills. The first land ...

I KEPT for many years in a glass case some specimens of Lacerta viridis, and often observed them after a feed playing in the sunlight in a peculiar manner, first drinking water, which they lapped up ...

Using biological experiments, robot models, and a geometric theory of locomotion, researchers investigate how and why intermediate lizard species, with their elongated bodies and short limbs, might ...