SHARK VS SHARK

Frilled sharkvsMegamouth shark

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

LivingChlamydoselachus anguineus×LivingMegachasma pelagios
QUICK VERDICT

Megamouth shark is about 3.5× longer by these reference values.

Megamouth shark uses a 7.1 m upper reference, compared with 2 m for Frilled shark. Megamouth shark's weight reference is about 81× heavier.

01

ON THE SAME SCALE

Human. Bus. Whale.
Pick your reference.

RELATIVE LENGTH · 0–24 METERS
AFrilled sharkabout 2 m / 6.6 ft
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.

MeasureFrilled sharkMegamouth shark
Length referenceabout 2 m / 6.6 ftreported to about 7.1 m / 23 ft
Weight referencelarge-adult reference about 15 kg / 33 lbreported near 1,215 kg / 2,679 lb
Bite forceNo dependable maximum foundUnknownNot meaningfully establishedUnknown
HabitatDeep continental slopesDeep tropical and subtropical oceans
DietSquid, fishes and small sharksKrill and other plankton
03

WHAT THE DATA CAN SAY

Size is not the whole animal.

Length and weight

Frilled shark is represented by about 2 m / 6.6 ft; Megamouth shark by reported to about 7.1 m / 23 ft. Deepwater records remain limited. Sparse specimens make a true maximum difficult to establish.

Bite evidence

Frilled shark: 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

Its body plan looks ancient, but living frilled sharks are modern species—not unchanged fossils. Known from relatively few encounters, it still carries major uncertainty.

04

TRACE THE CLAIMS

Sources and limits.

Frilled sharkFlorida MuseumMegamouth sharkFlorida MuseumHow we standardize comparisonsRead the methodology →