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

# bottlenose dolphin vs polar bear

**bottlenose dolphin vs polar bear: Evenly matched on the numbers**

Measured comparison — not a prediction

The dolphin most people picture, and the one most often kept in aquaria. The largest living land carnivore, classified as a marine mammal because it hunts from sea ice. The measurements below split evenly, which is rarer than it sounds.

## The measurements

|  | bottlenose dolphin | polar bear |
| --- | --- | --- |
| Mass | 150–650 kg | 150–700 kg |
| Length | 2–4 m | 1.8–3 m |
| Height | — | 1–1.6 m |
| Top speed | 35 km/h | 40 km/h |
| Bite force | — | 1,200 psi |
| Lifespan | 30–60 yr | 20–32 yr |

## Where each one leads

- Mass: polar bear is 1.5× heavier.
- Length: bottlenose dolphin is 1.1× longer.
- Top speed: polar bear is 1.1× faster.
- Lifespan: bottlenose dolphin is 1.6× 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 bottlenose dolphin bigger than a polar bear?

polar bear is heavier — 150–700 kg against 150–650 kg.

### Who would win, a bottlenose dolphin or a polar bear?

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 bottlenose dolphin weigh?](https://atoneplace.net/weight/bottlenose-dolphin/)
- [How much does a polar bear weigh?](https://atoneplace.net/weight/polar-bear/)
- [lion vs polar bear](https://atoneplace.net/animal-vs/lion-vs-polar-bear/)
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- [jaguar vs polar bear](https://atoneplace.net/animal-vs/jaguar-vs-polar-bear/)
- [cheetah vs polar bear](https://atoneplace.net/animal-vs/cheetah-vs-polar-bear/)
- [cougar vs polar bear](https://atoneplace.net/animal-vs/cougar-vs-polar-bear/)
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- [grizzly bear vs polar bear](https://atoneplace.net/animal-vs/grizzly-bear-vs-polar-bear/)
- [polar bear vs tiger](https://atoneplace.net/animal-vs/polar-bear-vs-tiger/)
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- [polar bear vs spotted hyena](https://atoneplace.net/animal-vs/polar-bear-vs-spotted-hyena/)
- [polar bear vs wolverine](https://atoneplace.net/animal-vs/polar-bear-vs-wolverine/)

## Sources

- National Oceanic and Atmospheric Administration — NOAA (https://www.noaa.gov/) [Public domain (US Government)]
- Smithsonian National Museum of Natural History — Smithsonian Institution (https://naturalhistory.si.edu/)