Orange Spot Freshwater Stingray

Potamortrygon Motoro

This fish doesn’t have sharp teeth, like sharks do, but it does have a venomous tail and therefore is dangerous. The fish, which is also known as South American feshwater singray, also has gills on top of its head in order to breath even if the ray is burried in the sand, and it also has its mouth on the belly, which is useful for sucking up its prey. These animals aren’t small: They can grow up to a meter long and reach weights of about four and a half kilograms. The orange spot feshwater stingray lives in the amazon river.

This fish doesn’t have teeth, but rather a very painful and poisionous stinger. Image: Bernard DUPONT

Red-Bellied Piranha

Pygocentrus Nettereri

These are probably the most infamous fish after the sharks. The piranhas of the rainforest have the sharpest teeth and most powerful jaws of any type of piranha. Nonetheless, these animals usually travel in schools of many fish and only eath small fish. But if they come across a large animal that is wounded or cannot defend itself, they will also attack and tear apart that. These piranhas can grow over three and a half kilgorams heavy and more than 60cm long. They live in the South American rivers.

The teeth of the red-bellied piranhas are extremely sharp triangles and fit together like the blades of scisors. Image: Cliff

Tucuxi

Sotallia Fluviatillis

The tucuxi is a freshwater dolphin and is also known by the name “river dolphin”. When the rainforest of South America is flooded, they also swim between the trees while searching for fish to eat. The tucuxi is up to one and a half meters long and weigs 45 kilgorams.

The tucuxi looks like the bottlenose dolphin but is much smaller. Image: Michelle Bender

Dorado

Salminus Maxillosus

The dorado gets its name (Spanish for “golden”) from its orange, yellow and black scales. In Souh America, people fish for this animal. A dorado can be nearly a meter long and weigh close to 20 kilograms. They can be found in Brazil, Bolivia and northern Argentina.

This fish frequently fights back when it is caught.

Spectacled Caiman

Caiman Crocodilus

The spectacled caiman has several names, including “common caiman” and “tinga”. The name “spectacled caiman” comes from the bony ridges around the eyes, which makes people think of glasses. The caiman moves through the water using its long and powerful tail as well as the webbed feet. Most of the caimans reach a maximum size of two and a half meters, but some can be over three meters long. The caiman, which is a member of the alligator family, lives in the rivers and wetlands of Central and Southern America. The females lay their eggs in nests that they make on land. Once the young have hatched, they stay together as a group for about one and a half years.

The spectacled caiman spends the largest percentage of its life in water. Image: Jorasm