Difference between reptiles and amphibians

Reptiles and amphibians are two classes of vertebrates. Not everyone succeeds in figuring out which of them a particular representative of the fauna belongs to. To correctly navigate the existing classification, you need to know how reptiles differ from amphibians.

General information

In reptiles and amphibians there are second names. Reptiles are also called reptiles, and amphibians are amphibians. It was the reptiles that were the largest animals - dinosaurs. Reptiles once dominated everywhere on Earth. Then most of them became extinct. The most famous representatives of modern reptiles are crocodiles, turtles, snakes and lizards.

Reptiles

Now let's say who belongs to the amphibians. This is a frog, newt, salamander. Amphibians are vertebrates of the most primitive structure. These animals have such a name because the important habitat for most of them is land, and the necessary environment for reproduction and development is water. Among the amphibians, there are those that spend their lives mainly in the water.

Amphibians

Comparison

Skin

For reptiles, the connection with water is not so important. They often settle in dry and hot areas. Scaly skin protects the body of animals from drying out. In turtles, the shell, which serves as a shelter from faster pursuers, is also accrete scales. Reptiles shed periodically. The skin is shed all at once or in parts. Thanks to this, the scales do not restrain the growth of the animal.

The body of amphibians is not covered with scales. Many people disdain to touch these creatures because of their wet and slippery skin. It's all about the glands that produce mucus, which literally penetrate the skin of animals.

The structure of organs

The difference between reptiles and amphibians is that the former have a more perfect physiology. Their nervous system is complicated. Hearing, vision and other senses are well developed. Reptiles are born with already formed lungs, while the larvae of amphibians have gills.

The structure of the spine in amphibians is simpler - it consists of four sections. The spine of reptiles is represented by five sections. In addition, tailless amphibians lack ribs.

Reproduction

Internal fertilization is a predominant feature of all reptiles. Some animals of this class, such as crocodiles, lay eggs. After a while, fully developed individuals hatch from them, differing from their parents only in size. Viviparity is inherent in other types of reptiles.

The method of reproduction of amphibians is to throw eggs into the water. From the eggs glued together, larvae soon emerge, which develop into adults only after more than one month has passed.

Lifespan

What is the difference between reptiles and amphibians, if you compare the duration of the existence of both? It should be noted here that many reptiles, under favorable conditions, live for a very long time - more than a dozen years. There are also centenarians among them, the existence of which can last more than a hundred or even two hundred years. Turtles are such champions.

Amphibians are not fortunate enough to have such a long life. Even a dozen years for most of them is considered an exorbitant value. In captivity, the lifespan of representatives of certain species may increase. This applies, for example, to salamanders.

Table

Reptiles Amphibians
Have scales, shedThe skin is smooth, moisturized with mucus
Organs are more developedPrimitive structure
Lungs from birthGills in larvae
Spine sections - fiveSpine sections - four
Internal fertilizationSpawn
Live longShort live
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