River animals belong to the same group as aquatic animals that are adapted to fresh water, not being able to live in salt water.

River crab

River crab

What is a river?

Rivers are created by streams high in the mountains that flow downward when seawater is evaporated. Most of the water disappears into the atmosphere and the rest falls as rain into freshwater rivers, which is then returned to the sea.

Types of animals that live in rivers

In rivers it is common to find a great variety of species. In the group of vertebrates we have amphibians, reptiles or fish. We can also find mammalian animals such as turtles, ducks, otters or crocodiles.

Crustaceans, mollusks and freshwater crabs inhabit the invertebrate group.

In the Amazon River we can find the home of an extremely rare animal, the pink freshwater dolphin.

River animals have adapted to their habitat, and that is why they are usually large animals to cope with strong currents.

To cope with the strong currents, river animals have had to adapt in order to survive in their environment.

Threats from rivers

River animals can be drastically affected by human activity. Chemicals used in food, medicines or other products are spilled that pollute the water, affecting not only fish, but also humans themselves by using that water for agriculture.

For more information visit the section aquatic animals

List of river animals

Burrowing frog

Burrowing frog



La burrowing frog (Heleioporus) is a wild animal belonging to genus of amphibians composed of six large species. Only one of the six species is found in southeastern Australia and the rest of the frog species are found in western Australia.

Bull frog

Bull frog



rana toro (Lithobates catesbeianus) is a wild animal medium in size. Its name comes from the noisy sounds similar to a cow. Currently, like the edible frogs, bullfrogs are eaten by humans in parts of North America and are also raised as pets. But they have been introduced in other countries around the world, altering the natural ecosystem by becoming an invasive species that has no natural predators.

Fire-bellied toad

Fire-bellied toad



fire-bellied toad (Bombina) is a toad of the Bombina species, belonging to amphibians. Its size ranges from small to medium that it can be found natively in the European continent and North and Central Asia.

Shoemaker in isometric view

Zapatero