The large size of modern crocodiles is understandable, given that these semi-aquatic reptiles co-existed with dinosaurs. There are currently 24 recognized species of crocodilians, including crocodiles ...

The southeastern United States has many fascinating snakes – none more feared than the highly venomous cottonmouth. These ...

Salamanders are amphibians, not reptiles. There are over 700 species of salamanders globally, but all are classified as ...

Water and air pose completely different challenges to animals on a number of levels.