Most amphibians breathe through lungs and their skin. Their skin has to stay wet in order for them to absorb oxygen so they secrete mucous to keep their skin moist (If they get too dry, they cannot breathe and will die). Tadpoles and some aquatic amphibians have gills like fish that they use to breathe.

Iguanas are not mammals. They are reptiles.

Reptiles include snakes, turtles and lizards, while amphibians include toads, frogs and salamanders, according to Mass Audubon. Reptiles, on the other hand, do not have to spend part of their lives in water, although they do often live near water and spend time in water.

Amphibians are frogs, toads, newts and salamanders. Most amphibians have complex life cycles with time on land and in the water. Their skin must stay moist to absorb oxygen and therefore lacks scales. Reptiles are turtles, snakes, lizards, alligators and crocodiles.

Amphibians are animals adapted to living both on land and in water. Though turtles live in or around water bodies, they are not amphibians but reptiles. They lay hard-shelled eggs therefore not a must they lay them in the water like amphibians.

Crocodiles are very similar to amphibians but hey are not termed under amphibians. In fact they are a part of the reptile family.

Amphibians occur widely throughout the world, even edging north of the Arctic circle in Eurasia; they are absent only in Antarctica, most remote oceanic islands, and extremely xeric (dry) deserts. Frogs and toads show the greatest diversity in humid tropical environments.

An amphibian is a cold-blooded vertebrate animal that is born in water and breathes with gills. Frogs, toads, and salamanders are all amphibians.

Frogs, newts and salamanders are all amphibians — they can live in the water and on land, but usually lay eggs in the water because they’re shell-less and need moisture. A few species, including the Ranitomeya imitator frog, actually give birth to live babies after the fertilized egg develops in the oviduct.

Duck is not an amphibian, it is an aquatic bird.

They hatch from eggs and lay new eggs, they are oviparous. Ladybugs hatch from eggs, all other insects too! They hatch from eggs and lay new eggs, they are oviparous.

How long do they live? After a female lays her eggs, they will hatch in between three and ten days, depending on ambient temperature. The larva will live and grow for about a month before it enters the pupal stage, which lasts about 15 days. After the pupal stage, the adult ladybug will live up to one year.