Mammal
Pygmy Hippopotamus
The small forest hippo of West Africa
Freshwater habitats
Flowing and still freshwater differ in oxygen, temperature, and connectivity. Dams and pollution fragment populations. Species with river, lake, stream, pond, or freshwater in habitat facts are listed here.
Quick answer
Rivers, lakes, streams, and ponds support fish, amphibians, otters, and riverside birds. Freshwater habitats cover little of Earth's surface but hold a large share of threatened species.
Iconic species
Otters, salmon-style fish where covered, freshwater turtles, and amphibians highlight life tied to clean inland water.
Threats & pressures
Pollution, dams, water extraction, invasive species, and climate-altered flows are leading freshwater threats.
How to explore further
See wetlands for marshes and mangroves, and ocean for saltwater counterparts.
- Browse freshwater species — River and lake profiles
- Wetlands — Marshes and swamps
- Ocean — Marine habitats
- Ocean life pack — Aquatic classroom pack
Species in freshwater animals
Ranked by profile popularity. An animal may also appear in other biomes if it uses multiple habitats.
Reptile
Alligator Snapping Turtle
The prehistoric lure-fishing giant of American rivers
Mammal
Indian Rhinoceros
The armour-plated one-horned giant
Fish
Rainbow Trout
The colourful fly-fisher's favourite
Mammal
Bonobo
The peaceful ape of the Congo Basin
Fish
Betta
Labyrinth fish famous for vivid fins
Mammal
Proboscis Monkey
Borneo's big-nosed swimmer
Bird
Scarlet Macaw
Iconic red-and-blue rainforest parrot
Bird
Flamingo
The pink filter-feeder that stands on one leg
Fish
Channel Catfish
North America's whiskered bottom feeder
Bird
Osprey
The fish-hunting raptor of coasts and lakes
Mammal
North American Beaver
Nature's engineer of wetlands
Show 63 more species
Amphibian
Axolotl
The salamander that never grows up and can regrow body parts
Bird
Bald Eagle
The fish-hunting raptor and national bird of the United States
Bird
Canada Goose
The honking V-formation flyer
Reptile
Reticulated Python
World's longest snake
Mammal
Manatee
The gentle sea cow of warm coastal waters
Bird
Peach-faced Lovebird
Africa's pocket parrot that bonds for life
Amphibian
Chinese Giant Salamander
World's largest amphibian
Reptile
American Alligator
The armored survivor of the southern swamps
Mammal
Platypus
The egg-laying, duck-billed mammal of Australia
Fish
Largemouth Bass
America's favourite freshwater game fish
Bird
Common Loon
Iconic diving bird of northern lakes
Mammal
Hippopotamus
Africa's deadliest large land mammal
Fish
Largetooth Sawfish
Giant ray with a toothed rostral saw
Reptile
Saltwater Crocodile
The largest living reptile and most powerful bite on Earth
Reptile
Spectacled Caiman
The common crocodilian of the Americas
Reptile
Nile Monitor
Large African water monitor and egg predator
Fish
Goldfish
The world's most popular pet fish
Reptile
Painted Turtle
The pond slider of North America
Mammal
Muskrat
North America's pond-building rodent
Mammal
American Mink
The semi-aquatic mustelid
Bird
Grey Heron
The patient wetland hunter
Reptile
Green Basilisk
Jesus Christ lizard that runs on water
Amphibian
Smooth Newt
Widespread European pond newt
Fish
Betta Fish
The colorful fighter of Southeast Asian waters
Mammal
Otter
The playful, water-loving member of the weasel family
Amphibian
Mudpuppy
Fully aquatic salamander with external gills
Mammal
Capybara
The world's largest rodent
Mammal
Rat
The clever, adaptable rodent that lives everywhere humans do
Fish
Atlantic Salmon
The fish that swims upriver to spawn
Bird
Swan
The graceful giant of lakes and rivers
Reptile
Nile Crocodile
Africa's largest and most formidable predator of the rivers
Fish
Red-bellied Piranha
The sharp-toothed fish of the Amazon
Reptile
Green Anaconda
The heaviest snake in the world
Fish
Koi
The ornamental carp of garden ponds
Bird
Wood Stork
Tactile-fishing stork of southern swamps
Bird
Jabiru
Giant stork of Neotropical wetlands
Amphibian
Surinam Toad
Flat frog that grows babies in its back
Amphibian
Spring Peeper
Thumb-sized herald of eastern spring
Amphibian
Pacific Tree Frog
West Coast chorus frog behind the movie ribbit
Fish
Australian Lungfish
Queensland river survivor from the age of dinosaurs
Fish
Bull Shark
The shark that swims into freshwater
Fish
Stingray
The flat-bodied ray with a venomous tail
Fish
Electric Eel
The fish that generates powerful electric shocks
Amphibian
American Bullfrog
North America's largest and loudest frog
Fish
European Eel
The 100-year reproductive mystery that baffled scientists from Aristotle to the 21st century
Reptile
Snapping Turtle
The powerful-jawed freshwater turtle of North America
Reptile
Asian Water Monitor
One of the largest lizards in the world
Amphibian
Common Toad
The warty garden toad of Europe
Fish
Pufferfish
The fish that inflates into a spiky ball
Reptile
Gharial
The fish-eating crocodilian with a long, narrow snout
Bird
Common Kingfisher
A jewel-colored diver of rivers and streams
Insect
Dragonfly
The agile aerial hunter of ponds and streams
Amphibian
African Clawed Frog
The fully aquatic lab and pet frog
Amphibian
Oriental Fire-bellied Toad
The green toad with a warning-red belly
Bird
Mallard
The familiar wild duck found around the world
Amphibian
Goliath Frog
The largest frog on Earth
Amphibian
Fire Salamander
The black-and-yellow salamander of European forests
Amphibian
Glass Frog
The frog with see-through skin
Amphibian
Tiger Salamander
A stout, burrowing salamander of North America
Amphibian
Eastern Newt
The newt with a bright orange land stage
Amphibian
Hellbender
North America's giant, fully aquatic salamander
Bird
Ibis
The long-billed wading bird of marsh and river
Fish
X-ray Tetra
The see-through fish of the Amazon
Frequently asked questions
What is a freshwater habitat?
Freshwater habitats include rivers, lakes, streams, and ponds. They support fish, amphibians, aquatic insects, otters, and birds that hunt along the shore. Pollution, dams, and water extraction make freshwater one of the most threatened habitat types worldwide.
Which animals live in freshwater habitats?
Species lists on this page are drawn from Global Animal Guide profiles whose habitat facts match freshwater keywords. Browse the ranked list for answer-first guides covering diet, range, and conservation.
How is freshwater different from other biomes?
Freshwater is defined by climate, vegetation, and water availability that favour particular body plans and behaviours. Compare sibling biome hubs (ocean, forest, desert, and more) to see how the same animal groups specialise differently.