---
title: "American alligator vs bottlenose dolphin — size, speed and bit"
description: "American alligator and bottlenose dolphin compared on mass, length, speed, bite force and lifespan — every measure side by side, with why the numbers cannot settle a"
url: https://atoneplace.net/animal-vs/american-alligator-vs-bottlenose-dolphin/
site: "At One Place"
---

# American alligator vs bottlenose dolphin

**American alligator vs bottlenose dolphin: American alligator leads on 2 of 3 measures**

Measured comparison — not a prediction

A broad-snouted crocodilian of the US Southeast, recovered from near-extinction to over a million animals. The dolphin most people picture, and the one most often kept in aquaria. On the measurements below, American alligator leads on more of them — but they do not all point the same way, and the ones that disagree are the interesting part.

## The measurements

|  | American alligator | bottlenose dolphin |
| --- | --- | --- |
| Mass | 70–500 kg | 150–650 kg |
| Length | 2.6–4.6 m | 2–4 m |
| Top speed | — | 35 km/h |
| Bite force | 1,000–2,980 psi | — |
| Lifespan | 35–70 yr | 30–60 yr |

## Where each one leads

- Mass: bottlenose dolphin is 1.3× heavier.
- Length: American alligator is 1.3× longer.
- Lifespan: American alligator is 1.3× a longer life.

## What this does and does not tell you

These are measured averages with real ranges behind them, and every figure links to its own page. What they cannot do is settle an encounter. Outcomes between animals turn on circumstance — who initiates, whether either is hungry, defending young, injured or cornered, and what the terrain favours. Size and bite force are not decisive on their own, and most of these pairs never meet in the wild in any case, because their ranges do not overlap.

> Every figure here is an average with a substantial spread. Individual animals vary enormously — a large individual of the smaller species routinely exceeds a small individual of the larger one.

## Common questions

### Is a American alligator bigger than a bottlenose dolphin?

bottlenose dolphin is heavier — 150–650 kg against 70–500 kg.

### Who would win, a American alligator or a bottlenose dolphin?

That is not something measurements can settle. The comparison above shows which animal leads on each measure, but an actual encounter depends on circumstance, motivation, health and terrain — and most pairs like this never meet in the wild.

## Related pages

- [How much does a American alligator weigh?](https://atoneplace.net/weight/american-alligator/)
- [How much does a bottlenose dolphin weigh?](https://atoneplace.net/weight/bottlenose-dolphin/)
- [American black bear vs bottlenose dolphin](https://atoneplace.net/animal-vs/american-black-bear-vs-bottlenose-dolphin/)
- [African elephant vs bottlenose dolphin](https://atoneplace.net/animal-vs/african-elephant-vs-bottlenose-dolphin/)
- [African elephant vs American alligator](https://atoneplace.net/animal-vs/african-elephant-vs-american-alligator/)
- [Asian elephant vs bottlenose dolphin](https://atoneplace.net/animal-vs/asian-elephant-vs-bottlenose-dolphin/)
- [black rhinoceros vs bottlenose dolphin](https://atoneplace.net/animal-vs/black-rhinoceros-vs-bottlenose-dolphin/)
- [American bison vs bottlenose dolphin](https://atoneplace.net/animal-vs/american-bison-vs-bottlenose-dolphin/)
- [blue whale vs bottlenose dolphin](https://atoneplace.net/animal-vs/blue-whale-vs-bottlenose-dolphin/)
- [bottlenose dolphin vs lion](https://atoneplace.net/animal-vs/bottlenose-dolphin-vs-lion/)
- [bottlenose dolphin vs tiger](https://atoneplace.net/animal-vs/bottlenose-dolphin-vs-tiger/)
- [bottlenose dolphin vs leopard](https://atoneplace.net/animal-vs/bottlenose-dolphin-vs-leopard/)
- [bottlenose dolphin vs jaguar](https://atoneplace.net/animal-vs/bottlenose-dolphin-vs-jaguar/)
- [bottlenose dolphin vs cheetah](https://atoneplace.net/animal-vs/bottlenose-dolphin-vs-cheetah/)

## Sources

- Smithsonian National Museum of Natural History — Smithsonian Institution (https://naturalhistory.si.edu/)
- National Oceanic and Atmospheric Administration — NOAA (https://www.noaa.gov/) [Public domain (US Government)]
- Typical range compiled from manufacturer specifications — At One Place (/about/)