Alligators
Biome
Rivers, lakes & wetlands
Meet the animals of rivers, lakes & wetlands and read what we know about how they live there.
16 animals29 articles2 habitats inside
Animals: Rivers, lakes & wetlands
Alligators
American alligator
Alligator mississippiensis 
Axolotl
Ambystoma mexicanum 
Betta fish
Betta splendens 
Crocodiles
Dragonflies
Frogs
Hippopotamus
Hippopotamus amphibius 
Jaguar
Panthera onca 
Mayflies
Moose
Alces alces 
Mystery snail
Pomacea diffusa 
Platypus
Ornithorhynchus anatinus 
Pufferfish
Tiger
Panthera tigris 
Viceroy butterfly
Limenitis archippus Articles
Comparisons
How big is a lion? Size and weight compared with a tiger and a human
A male lion weighs 150 to 260 kg and stands about 1.2 m at the shoulder. See how lions measure…
Adaptations
Sunda tiger: adaptations, size, and why it is so endangered
The Sunda tiger is the smallest living tiger. Meet its key adaptations, see how big it gets, and learn why…
Adaptations
Platypus facts: the egg-laying mammal
The platypus is an Australian mammal that lays eggs, hunts with its eyes shut using an electric-sensing bill, and has…
Lifespan
How Long Do Mayflies Live – Mayflies Lifespan
Mayflies are aquatic or water insects commonly found in wetlands, from shallow streams to lake edges. They are also known…
Pet care
A Guide to Caring for and Raising a Baby Puffer Fish
Picture those hours after a long, grueling day at work. All you want to do is relax, and you’re looking…
Predators & threats
What Eats Crocodiles? Crocodile Predators
Crocodiles are large-sized semi-aquatic reptiles found in tropical regions of Asia, Africa, the Americas, and Australia. There are 18 living…
Diet & feeding
What Do Dragonflies Eat – Dragonflies Diet
Dragonflies are carnivorous insects and specifically feed on small insects. From their aquatic elemental stage, they hunt with their expandable…
Anatomy & appearance
Alligator vs crocodile: how to tell them apart (and which is more dangerous)
A dark shape lies still in a mangrove creek in southern Florida. Only its eyes and nostrils break the surface.…
Adaptations
What are the adaptations of a frog?
The 3 key adaptations of a frog, sorted into structural, behavioural and physiological, with a labelled diagram, myths, a quiz…
Life cycle & reproduction
The life cycle of a frog: the 4 stages from egg to adult (with diagram)
A frog's life cycle has four main stages: egg (frogspawn), tadpole, froglet and adult frog. Some books count three or…
Conservation & population
Are Moose Endangered – Are moose protected species
Moose are one of the most iconic and fascinating animals of the northern regions of the world. These majestic animals…
Speed
How Fast Can An Alligator Run – Alligator Speed
Alligators are one of the most impressive creatures in nature. These apex predators have been a part of the world’s…