An ornate tree lizard basks beside a 74-million-year-old fossilized log in the Bisti/De-Na-Zin Wilderness. Photo by Jeff Mitton. Every once in a while, an experience reminds us that great gulfs of ...

Biologists analyzed data from 2,600 lizard species worldwide and discovered that, while hundreds of different types of lizards have independently evolved arboreal lifestyles, species that possessed ...

Many lizards are phenomenal climbers. Their sharp, curved claws are ideal for clinging to tree trunks, rocks and other rough surfaces. However, in the precarious world of tree tops — filled with ...