Explore our Amphibian collection, which includes: frogs, toads, salamanders, newts, and caecilians. Did you know that axolotls are salamanders? Amphibians distinguishing feature is that they spend part of their lives on land, and part in the water. They are the most threatened class of animals in nature, because they are most sensitive to climate change, pollution, and disease. Their soft eggs and permeable skin makes them more susceptible than many other creatures.