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Fauna is an educational field guide. Measurements are ranges, not game stats.

Explore species · IUCN Red List

Freshwater · Fauna

Habitat

Freshwater

Rivers and billabongs, especially for nesting.

Pod of hippopotamuses in the Luangwa Valley, Zambia

Hippopotamus

Hippopotamus amphibius

Mammal · Herbivore · Freshwater

Axolotl at the Steinhart Aquarium in San Francisco

Axolotl

Ambystoma mexicanum

Critically Endangered

Amphibian · Carnivore · Freshwater

Saltwater crocodile resting on a muddy bank

Saltwater crocodile

Crocodylus porosus

Reptile · Carnivore · Mangrove and estuary