SHARK VS SHARK

Dwarf lanternsharkvsMegamouth shark

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

LivingEtmopterus perryi×LivingMegachasma pelagios
QUICK VERDICT

Megamouth shark is about 34× longer by these reference values.

Megamouth shark uses a 7.1 m upper reference, compared with 0.21 m for Dwarf lanternshark. Megamouth shark's weight reference is about 6075× heavier.

01

ON THE SAME SCALE

Human. Bus. Whale.
Pick your reference.

RELATIVE LENGTH · 0–24 METERS
ADwarf lanternsharkabout 0.21 m / 8.3 in
BMegamouth sharkreported to about 7.1 m / 23 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.

MeasureDwarf lanternsharkMegamouth shark
Length referenceabout 0.21 m / 8.3 inreported to about 7.1 m / 23 ft
Weight referencerough reference about 0.2 kg / 0.4 lbreported near 1,215 kg / 2,679 lb
Bite forceNo dependable maximum foundUnknownNot meaningfully establishedUnknown
HabitatDeep Caribbean slopesDeep tropical and subtropical oceans
DietSmall crustaceans and fishesKrill and other plankton
03

WHAT THE DATA CAN SAY

Size is not the whole animal.

Length and weight

Dwarf lanternshark is represented by about 0.21 m / 8.3 in; Megamouth shark by reported to about 7.1 m / 23 ft. Tiny sample sizes make the exact maximum provisional. Sparse specimens make a true maximum difficult to establish.

Bite evidence

Dwarf lanternshark: No standardized maximum is available. Megamouth shark: This filter feeder lacks a comparable maximum-bite study.

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

One of the smallest known sharks also produces light. Known from relatively few encounters, it still carries major uncertainty.

04

TRACE THE CLAIMS

Sources and limits.

Dwarf lanternsharkSmithsonian OceanMegamouth sharkFlorida MuseumHow we standardize comparisonsRead the methodology →