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Groupinganimals Amphibians
Amphibians live partly on land and in water.
Amphibians breathe through on land. Yet they do not drink but absorb water through their skin. When they metamorphose into frogs they eventually lose their gills and start breathing through the lungs or through the skin. With some amphibians it appears that they can breathe underwater when in fact they are holding their breath.
However they are defined by much more than these facts. Amphibians can breathe underwater because they can absorb dissolved oxygen through their skins when underwater. To exchange gases terrestrial reptiles depend on their lungs.
As weve already learned amphibians are very different from reptiles. Amphibians breathe through in water. Some transport water oxygen and carbon dioxide either into.
It can survive without any water for quite a while. As long as their skin is moist they can absorb oxygen directly from the air or water through the skin. One of the most popular reptiles in the world are crocodiles.
Sea turtles still breathe air but normally only go on land when they have to lay eggs. Reptiles have a scaly skin while amphibians have smooth skin. An example of an amphibian is this toad.
The easiest way to determine if an animal is amphibious is to observe whether they are. At this young stage the offspring breathe through the gills and after some time they develop lungs through a process known as metamorphosis. Some common examples are frogs toads salamanders and newts.
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