Amphibians: Frogs, Toads, and Salamanders

by Robbiekw
Last updated 5 years ago


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Amphibians: Frogs, Toads, and Salamanders

Also, since these amphibians are very sensative to environmental change, and we see their population numbers going down, this may mean danger. This could mean that other animal populations could decrease soon too.

Frogs are similar to toads, but their skin is smoother and moist. They both eat insects and lay their eggs in the water each year because of metamorphis.

Amphibians: Frogs, Toads, and Salamanders

When most amphibians are born, they are born in water. As they grow, some of them lose their gills and gain lungs. Frogs even grow legs which allow them to live on land. Some salamanders start with legs, and some salamanders also can start and keep their lungs or gills. After the amphibians start living on land, they only come back to the water when they are dehidrated or reproducing (with the exception of some few amphibians).

Some main amphibians are frogs, toads, and salamanders.

Toads are similar to frogs, but their skin is bumpier and drier. Unlike their tadpole form, they usually eat flies too. And one of their adaptations is to ooze poison when attaked by a predator.

Salamanders are amphibians that keep their tails as adults. Some of the salamanders live on land their whole life, others live in water. They also, like other amphibians, go back every year to the water to lay their eggs.

Since they start in the water, when they get onto land, their bones have to be stronger to support them because gravity pulls less in the water. Frogs and toads use their strong legs to jump around as a way of movement. Their eyes also have to adapt to the land. They need eyelids to keep their eyes from drying out. These are some adaptations that amphibians need when going onto land.

As tadpoles, frogs have a one loop circulation system. However, as they become adults, they get a two loop circulation system. The blood without oxygen goes through an atrium, to the ventricle, and out through the arteries. Then, the blood comes back into the heart, through the same process, but out to the rest of the body.

Kavan AndersonRobbie Wong



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