🐊 Black caiman vs Saltwater crocodile 🐊
The black caiman and the saltwater crocodile are about the same size.
Getting the animals ready…
| Row | 🐊 Black caiman | 🐊 Saltwater crocodile |
|---|---|---|
| Size They are about the same size. | 20 ft6 m1 | 20 ft6.1 m2 |
| Top speed Neither has a checked number yet. | no checked number yet | no checked number yet |
| Weight Neither has a checked number yet. | no checked number yet | no checked number yet |
| Lives We don't have a checked number for the saltwater crocodile yet. | 13 years13 years1 | no checked number yet |
| Eats Both eat meat. | fish such as piranhas and catfish, other animals near the water, and insects when it is young | fish, crabs, birds and animals that come to the water |
| Lives in They can live in the same kind of place. | slow rivers, lakes and flooded forest in the Amazon region | rivers, swamps and coasts from India to northern Australia |
Which one? Black caiman or saltwater crocodile
🏁 Who would win the race?
We don't have a checked top speed for the black caiman or the saltwater crocodile yet, so there is no race.
We only race. Real animals mostly avoid each other. A race is the only fair contest: who reaches the tree first, by top speed. Our face-off books compare real numbers, and nobody gets hurt.
8 things to know about Black caiman vs Saltwater crocodile
- The black caiman: A very big reptile of the Amazon that lives in slow rivers.
- The saltwater crocodile: The biggest reptile alive, at home in rivers and even the sea.
- They are the same kind of animal: both are reptiles.
- The black caiman and the saltwater crocodile are about the same size: 2 against 1.
- Both eat meat. The black caiman eats fish such as piranhas and catfish, other animals near the water, and insects when it is young; the saltwater crocodile eats fish, crabs, birds and animals that come to the water.
- The black caiman lives in slow rivers, lakes and flooded forest in the Amazon region. The saltwater crocodile lives in rivers, swamps and coasts from India to northern Australia. They can live in the same kind of place.
- The black caiman: doing fine (Least Concern on the IUCN Red List). 3
- The saltwater crocodile: doing fine (Least Concern on the IUCN Red List). 4
Wow facts
🐊 Black caiman
- A black caiman can grow longer than most cars.
- Young ones eat mostly insects.
- It lives in slow rivers and flooded Amazon forest.
🐊 Saltwater crocodile
- A mother carries her babies gently in her mouth.
- It can float with only its eyes and nose above water.
- It can swim out to sea, between islands.
Questions kids ask about Black caiman and Saltwater crocodile
Which is bigger, black caiman or saltwater crocodile?
The black caiman and the saltwater crocodile are about the same size: 2 against 1.
What do black caiman and saltwater crocodile eat?
Both eat meat. The black caiman eats fish such as piranhas and catfish, other animals near the water, and insects when it is young; the saltwater crocodile eats fish, crabs, birds and animals that come to the water.
Where do black caiman and saltwater crocodile live?
The black caiman lives in slow rivers, lakes and flooded forest in the Amazon region. The saltwater crocodile lives in rivers, swamps and coasts from India to northern Australia. They can live in the same kind of place.
Do black caimans eat saltwater crocodiles?
The black caiman eats fish such as piranhas and catfish, other animals near the water, and insects when it is young. Saltwater crocodiles are not in that list, which comes from its page.
Do saltwater crocodiles eat black caimans?
The saltwater crocodile eats fish, crabs, birds and animals that come to the water. Black caimans are not in that list, which comes from its page.
Who would win, black caiman or saltwater crocodile?
We never show fights, because a fight is not a fair way to compare animals. They can share the same kind of place, and real animals mostly keep out of each other's way. What we can compare is how big, how heavy, how fast, how long they live and what they eat, as above.
📤 Share this pair
The link carries only the two animals’ names: peabody.kids/animals/compare/black-caiman-vs-saltwater-crocodile
Where these numbers come from
- University of Michigan Museum of Zoology, Animal Diversity Web: Melanosuchus niger (black caiman), checked 10 November 2026.
- US Fish and Wildlife Service rule, Federal Register 24 June 1996 (govinfo.gov), checked 30 October 2026.
- Wikidata, from the IUCN Red List, checked 10 November 2026.
- Wikidata, from the IUCN Red List, checked 30 October 2026.