SHARK VS SHARK

Megamouth sharkvsNurse shark

Length, weight and bite evidence—plus context from a human, city bus and blue whale. Every number below carries its uncertainty with it.

LivingMegachasma pelagios×LivingGinglymostoma cirratum
QUICK VERDICT

Megamouth shark is about 2.3× longer by these reference values.

Megamouth shark uses a 7.1 m upper reference, compared with 3.08 m for Nurse shark. Megamouth shark's weight reference is about 11× heavier.

01

ON THE SAME SCALE

Human. Bus. Whale.
Pick your reference.

RELATIVE LENGTH · 0–24 METERS
AMegamouth sharkreported to about 7.1 m / 23 ft
BNurse sharkrecorded to 3.08 m / 10.1 ft
REFAdult human1.8 m · about 80 kg

Length bars use upper comparison values and do not show body depth, tail proportion or typical adult size. A long thresher tail, for example, does not equal whale-shark body mass.

02

THE NUMBERS

Side by side.

MeasureMegamouth sharkNurse shark
Length referencereported to about 7.1 m / 23 ftrecorded to 3.08 m / 10.1 ft
Weight referencereported near 1,215 kg / 2,679 lblarge-adult reference about 110 kg / 243 lb
Bite forceNot meaningfully establishedUnknownNo dependable maximum foundUnknown
HabitatDeep tropical and subtropical oceansWarm reefs, flats and mangroves
DietKrill and other planktonFishes, rays, mollusks and crustaceans
03

WHAT THE DATA CAN SAY

Size is not the whole animal.

Length and weight

Megamouth shark is represented by reported to about 7.1 m / 23 ft; Nurse shark by recorded to 3.08 m / 10.1 ft. Sparse specimens make a true maximum difficult to establish. Length is a recorded maximum; mass is a rounded adult reference.

Bite evidence

Megamouth shark: This filter feeder lacks a comparable maximum-bite study. Nurse shark: Suction performance is central to feeding and is not captured by bite-force rankings.

Living versus extinct

Both species are living, but record-sized individuals are rare. These upper references should not be read as normal adult size.

Ecology changes the matchup

Known from relatively few encounters, it still carries major uncertainty. A small mouth and powerful suction suit its bottom-feeding life.

04

TRACE THE CLAIMS

Sources and limits.

Megamouth sharkFlorida MuseumNurse sharkFlorida MuseumHow we standardize comparisonsRead the methodology →