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Here is a look at amphibians and reptiles, examples of each of them, and a summary of their differences. Amphibians spend part of their lives in water and part on land. Reptiles live on land. Juvenile amphibians have gills, while adults have lungs. Reptiles have lungs their entire lives.
Although reptiles and amphibians are both cold-blooded vertebrates, there are significant differences in their characteristics and life cycles. Reptile eggs are fertilized internally and usually laid on dry land, while amphibian eggs are fertilized after being laid in water.
Reptiles and amphibians have major physical differences. Reptiles have dry and scaly skin, whereas amphibians feel moist and sometimes rather sticky. They are vertebrates and cold blooded like amphibians.
There are about 460 species of amphibians and reptiles in the continental U.S. (Marks 2006), with a substantial number of species occurring in the American Southwest. The Sonoran Desert supports some 100 reptile and at least 20 amphibian species.
Amphibians and reptiles might seem similar — low to the ground, often in water and not warm or fuzzy — but these two distinct groups exhibit striking differences in the three Bs: body, breeding and behavior.
Reptiles were the first truly terrestrial vertebrates, while amphibians are a group with transient traits between fish and reptiles. While some amphibians have managed to conquer the land, most still depend on water and need to stay close to it.
Reptiles vs. Amphibians Differences. The following 3 differences highlight the most significant differences between reptiles and amphibians and as such, should not be overlooked! Difference #1: Skin. When compared side by side, it becomes easy to distinguish the skin of a lizard from that of an amphibian.
As a wise man once said, everyone poops and amphibians and reptiles are no different. However, there is a distinction between the composition of the secretions emitted by amphibians vs reptiles. Namely, the primary byproduct in the waste of amphibians is ammonia.
Amphibians and reptiles are two very distinct groups of animals, yet they are often confused for each other or thought to be the same thing. Individuals from each group might look very similar, for example newts and lizards, but in reality, there are far more differences than people realise.
Reptiles are air-breathing vertebrates covered in special skin made up of scales, bony plates, or a combination of both. They include crocodiles, snakes, lizards, turtles, and tor- toises.