🐻 American black bear vs Komodo dragon 🦎
The Komodo dragon is about twice as long as the American black bear. The American black bear weighs about 3 times as much as the Komodo dragon.
Getting the animals ready…
| Row | 🐻 American black bear | 🦎 Komodo dragon |
|---|---|---|
| Size The Komodo dragon is about twice as long as the American black bear. | 3.9 to 6.6 ft1.2 to 2 m1 | 10 ft3.1 m2 |
| Top speed We don't have a checked number for the American black bear yet. | no checked number yet | 9.9 to 12 mph16 to 20 km/h2 |
| Weight The American black bear weighs about 3 times as much as the Komodo dragon. | 86 to 902 lb39 to 409 kg1 | 154 lb70 kg2 |
| Lives The Komodo dragon usually lives about 3 times as long as the American black bear. | 10 years10 years1 | 30 years30 years2 |
| Eats The American black bear eats plants and animals; the Komodo dragon eats meat. | grasses, fruit, nuts and insects, and sometimes animals that have died | deer, pigs and dead animals |
| Lives in They can live in the same kind of place. | forests across North America, in thick brush with plenty of food | a few islands in Indonesia, including Komodo |
Which one? American black bear or Komodo dragon
🏁 Who would win the race?
We don't have a checked top speed for the American black bear 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.
10 things to know about American black bear vs Komodo dragon
- The American black bear: A common bear of North American forests that eats mostly plants.
- The Komodo dragon: The biggest lizard alive, with a forked tongue that tastes the air.
- They are different kinds of animal. The American black bear is a mammal, so it breathes air with lungs and feeds its babies milk; the Komodo dragon is a reptile, so it has scaly skin.
- The Komodo dragon is about twice as long as the American black bear: 2 against 1.
- The American black bear weighs about 3 times as much as the Komodo dragon. That is 1 for the American black bear and 2 for the Komodo dragon.
- The Komodo dragon usually lives about 3 times as long as the American black bear. Usual lifespans: 1 for the American black bear and 2 for the Komodo dragon.
- The American black bear eats grasses, fruit, nuts and insects, and sometimes animals that have died. The Komodo dragon eats deer, pigs and dead animals.
- The American black bear lives in forests across North America, in thick brush with plenty of food. The Komodo dragon lives in a few islands in Indonesia, including Komodo. They can live in the same kind of place.
- The American black bear: doing fine (Least Concern on the IUCN Red List). 3
- The Komodo dragon: in danger (Endangered on the IUCN Red List). 4
Wow facts
🐻 American black bear
- A black bear eats mostly plants.
- It lives in forests from Alaska to Mexico.
- In spring it eats grasses.
🦎 Komodo dragon
- It smells with its tongue by flicking it in the air.
- Young Komodo dragons live in trees.
- A female can sometimes have babies with no father.
Questions kids ask about American black bear and Komodo dragon
Which is bigger, American black bear or Komodo dragon?
The Komodo dragon is about twice as long as the American black bear: 2 against 1.
Which is heavier, American black bear or Komodo dragon?
The American black bear weighs about 3 times as much as the Komodo dragon. That is 1 for the American black bear and 2 for the Komodo dragon.
Which lives longer, American black bear or Komodo dragon?
The Komodo dragon usually lives about 3 times as long as the American black bear. Usual lifespans: 1 for the American black bear and 2 for the Komodo dragon.
What do American black bear and Komodo dragon eat?
The American black bear eats grasses, fruit, nuts and insects, and sometimes animals that have died. The Komodo dragon eats deer, pigs and dead animals.
Where do American black bear and Komodo dragon live?
The American black bear lives in forests across North America, in thick brush with plenty of food. The Komodo dragon lives in a few islands in Indonesia, including Komodo. They can live in the same kind of place.
Do Komodo dragons eat American black bears?
The Komodo dragon eats deer, pigs and dead animals. American black bears are not in that list, which comes from its page.
Who would win, American black bear or Komodo dragon?
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-bear-vs-komodo-dragon
Where these numbers come from
- University of Michigan Museum of Zoology, Animal Diversity Web: Ursus americanus (American black bear), checked 10 November 2026.
- Smithsonian's National Zoo, Komodo dragon, checked 30 October 2026.
- Wikidata, from the IUCN Red List, checked 10 November 2026.
- Wikidata, from the IUCN Red List, checked 30 October 2026.