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Bottlenose dolphin vs California sea lion

Bottlenose dolphin vs California sea lion
Bottlenose dolphin is larger on weight
Bottlenose dolphin is somewhat greater than California sea lion on weight — about 1.2×.

A bottlenose dolphin and a California sea lion can be compared on 4 measures. The figures below are typical adult or full-size values, with the larger of the two in bold.

Side by side

Larger value in bold. Ranges reflect genuine variation, not uncertainty.
Bottlenose dolphin California sea lion
Weight 150–650 kg 50–400 kg
Length 2–4 m 1.5–2.5 m
Top speed 35 km/h 40 km/h
Typical lifespan 30–60 yr 15–30 yr

What the numbers say

  • Bottlenose dolphin is somewhat greater than California sea lion on weight — about 1.2×.
  • Bottlenose dolphin is somewhat greater than California sea lion on length — about 1.2×.
  • California sea lion is somewhat greater than bottlenose dolphin on top speed — about 1.1×.
  • Bottlenose dolphin is 2× California sea lion on typical lifespan.

Weight compared.

Bottlenose dolphin 150–650 kg
California sea lion 50–400 kg

Bottlenose dolphin

The dolphin most people picture, and the one most often kept in aquaria.

California sea lion

An eared seal that can walk on all fours on land; the barking animal at most zoos and piers.

This is a comparison of published measurements, nothing more. It describes how two things differ on measures that have been recorded; it does not predict how they would fare against each other in any situation.

Common questions

Which is bigger, bottlenose dolphin or California sea lion?
Bottlenose dolphin is somewhat greater than California sea lion on weight — about 1.2×. Both figures are typical values; the full range for each is in the table above.
How do bottlenose dolphins and California sea lions compare on length?
Bottlenose dolphin: 2–4 m. California sea lion: 1.5–2.5 m. Bottlenose dolphin is somewhat greater than California sea lion on length — about 1.2×.
How do bottlenose dolphins and California sea lions compare on top speed?
Bottlenose dolphin: 35 km/h. California sea lion: 40 km/h. California sea lion is somewhat greater than bottlenose dolphin on top speed — about 1.1×.

Related pages

Sources

  1. National Oceanic and Atmospheric Administration — NOAA (Public domain (US Government))

How these figures are compiled and checked