Charles Darwin said that evolution was constantly happening, causing animals to adapt for survival. But many of his contemporaries disagreed. If evolution is always causing things to change, they ...

A new species of an “unusually large” alligator-like lizard has been discovered in the treetops of southern Mexico, after scientists spent years searching for the elusive reptile. A study published in ...

At this moment, the male side-blotched lizards of the American West are engaged in dating drama beyond human comprehension. Three different morphs of lizard, all with different colors and different ...

Scientists found an “unusually large,” elusive animal in the treetops of Chiapas and discovered a new species, a study said. Photo from Adam Clause via Clause, Luna-Reyes, Mendoza-Velázquez, ...

Yale researchers have identified the oldest-known, definitive members of the lizard crown group that includes all living lizards and their closest extinct relatives. The two new species, Eoscincus ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Most lizards in North America could suffer severe population decline ...

A new study suggests that predatory dinosaurs, such as Tyrannosaurus rex, did not have permanently exposed teeth as depicted in films such as Jurassic Park, but instead had scaly, lizard-like lips ...