🦭 Leopard seal vs Saltwater crocodile 🐊
The saltwater crocodile is about twice as long as the leopard seal.
Getting the animals ready…
| Row | 🦭 Leopard seal | 🐊 Saltwater crocodile |
|---|---|---|
| Size The saltwater crocodile is about twice as long as the leopard seal. | 9.8 to 12 ft3 to 3.8 m1 | 20 ft6.1 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 saltwater crocodile yet. | 661 to 1,100 lb300 to 500 kg1 | no checked number yet |
| Lives We don't have a checked number for the saltwater crocodile yet. | 26 years26 years1 | no checked number yet |
| Eats Both eat meat. | krill, squid and penguins | fish, crabs, birds and animals that come to the water |
| Lives in They can live in the same kind of place. | the pack ice around Antarctica and nearby islands | rivers, swamps and coasts from India to northern Australia |
Which one? Leopard seal or saltwater crocodile
🏁 Who would win the race?
We don't have a checked top speed for the leopard seal 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 Leopard seal vs Saltwater crocodile
- The leopard seal: A big spotted seal that lives around the ice of Antarctica.
- The saltwater crocodile: The biggest reptile alive, at home in rivers and even the sea.
- They are different kinds of animal. The leopard seal is a mammal, so it breathes air with lungs and feeds its babies milk; the saltwater crocodile is a reptile, so it has scaly skin.
- The saltwater crocodile is about twice as long as the leopard seal: 2 against 1.
- Both eat meat. The leopard seal eats krill, squid and penguins; the saltwater crocodile eats fish, crabs, birds and animals that come to the water.
- The leopard seal lives in the pack ice around Antarctica and nearby islands. The saltwater crocodile lives in rivers, swamps and coasts from India to northern Australia. They can live in the same kind of place.
- The leopard seal: 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
🦭 Leopard seal
- A leopard seal strains krill from the water with its teeth.
- Female leopard seals are bigger than males.
- It lives in the pack ice around Antarctica.
🐊 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 Leopard seal and Saltwater crocodile
Which is bigger, leopard seal or saltwater crocodile?
The saltwater crocodile is about twice as long as the leopard seal: 2 against 1.
Which is heavier, leopard seal or saltwater crocodile?
We only have a checked weight for the leopard seal: 1. Scientists are still working out the other.
What do leopard seal and saltwater crocodile eat?
Both eat meat. The leopard seal eats krill, squid and penguins; the saltwater crocodile eats fish, crabs, birds and animals that come to the water.
Where do leopard seal and saltwater crocodile live?
The leopard seal lives in the pack ice around Antarctica and nearby islands. The saltwater crocodile lives in rivers, swamps and coasts from India to northern Australia. They can live in the same kind of place.
Do leopard seals eat saltwater crocodiles?
The leopard seal eats krill, squid and penguins. Saltwater crocodiles are not in that list, which comes from its page. And the saltwater crocodile is about twice as long as the leopard seal.
Do saltwater crocodiles eat leopard seals?
The saltwater crocodile eats fish, crabs, birds and animals that come to the water. Leopard seals are not in that list, which comes from its page.
Who would win, leopard seal 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/leopard-seal-vs-saltwater-crocodile
Where these numbers come from
- University of Michigan Museum of Zoology, Animal Diversity Web: Hydrurga leptonyx (leopard seal), 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.