🐊 Black caiman vs Bull shark 🦈
The black caiman is about twice as long as the bull shark.
Getting the animals ready…
| Row | 🐊 Black caiman | 🦈 Bull shark |
|---|---|---|
| Size The black caiman is about twice as long as the bull shark. | 20 ft6 m1 | 7.5 to 9.3 ft2.3 to 2.8 m2 |
| Top speed Neither has a checked number yet. | no checked number yet | no checked number yet |
| Weight We don't have a checked number for the black caiman yet. | no checked number yet | 209 to 245 lb95 to 111 kg2 |
| Lives The bull shark usually lives about twice as long as the black caiman. | 13 years13 years1 | 32 years32 years2 |
| Eats The black caiman eats meat; the bull shark eats fish. | fish such as piranhas and catfish, other animals near the water, and insects when it is young | mostly fish such as catfish and stingrays, and also crabs |
| Lives in They can live in the same kind of place. | slow rivers, lakes and flooded forest in the Amazon region | warm, shallow coastal seas, and also rivers and lakes |
Which one? Black caiman or bull shark
🏁 Who would win the race?
We don't have a checked top speed for the black caiman or the bull shark 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.
9 things to know about Black caiman vs Bull shark
- The black caiman: A very big reptile of the Amazon that lives in slow rivers.
- The bull shark: A sturdy shark that can swim in salt water and in fresh water.
- They are different kinds of animal. The black caiman is a reptile, so it has scaly skin; the bull shark is a fish, so it breathes with gills.
- The black caiman is about twice as long as the bull shark: 1 against 2.
- The bull shark usually lives about twice as long as the black caiman. Usual lifespans: 1 for the black caiman and 2 for the bull shark.
- The black caiman eats fish such as piranhas and catfish, other animals near the water, and insects when it is young. The bull shark eats mostly fish such as catfish and stingrays, and also crabs.
- The black caiman lives in slow rivers, lakes and flooded forest in the Amazon region. The bull shark lives in warm, shallow coastal seas, and also rivers and lakes. They can live in the same kind of place.
- The black caiman: doing fine (Least Concern on the IUCN Red List). 3
- The bull shark: needs help (Vulnerable 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.
🦈 Bull shark
- A bull shark can swim in salt water and in fresh water.
- It is the only shark that can stay in fresh water for a long time.
- It eats mostly fish such as catfish and stingrays.
Questions kids ask about Black caiman and Bull shark
Which is bigger, black caiman or bull shark?
The black caiman is about twice as long as the bull shark: 1 against 2.
Which is heavier, black caiman or bull shark?
We only have a checked weight for the bull shark: 2. Scientists are still working out the other.
Which lives longer, black caiman or bull shark?
The bull shark usually lives about twice as long as the black caiman. Usual lifespans: 1 for the black caiman and 2 for the bull shark.
What do black caiman and bull shark eat?
The black caiman eats fish such as piranhas and catfish, other animals near the water, and insects when it is young. The bull shark eats mostly fish such as catfish and stingrays, and also crabs.
Where do black caiman and bull shark live?
The black caiman lives in slow rivers, lakes and flooded forest in the Amazon region. The bull shark lives in warm, shallow coastal seas, and also rivers and lakes. They can live in the same kind of place.
Do black caimans eat bull sharks?
The black caiman eats fish such as piranhas and catfish, other animals near the water, and insects when it is young. Bull sharks are not in that list, which comes from its page.
Do bull sharks eat black caimans?
The bull shark eats mostly fish such as catfish and stingrays, and also crabs. Black caimans are not in that list, which comes from its page. And the black caiman is about twice as long as the bull shark.
Who would win, black caiman or bull shark?
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-bull-shark
Where these numbers come from
- University of Michigan Museum of Zoology, Animal Diversity Web: Melanosuchus niger (black caiman), checked 10 November 2026.
- University of Michigan Museum of Zoology, Animal Diversity Web: Carcharhinus leucas (bull shark), checked 10 November 2026.
- Wikidata, from the IUCN Red List, checked 10 November 2026.
- Wikidata, from the IUCN Red List, checked 10 November 2026.