SHARK VS SHARK

Cookiecutter sharkvsWhitetip reef shark

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

LivingIsistius brasiliensis×LivingTriaenodon obesus
QUICK VERDICT

Whitetip reef shark is about 3.8× longer by these reference values.

Whitetip reef shark uses a 2.13 m upper reference, compared with 0.56 m for Cookiecutter shark. Whitetip reef shark's weight reference is about 3.7× heavier.

01

ON THE SAME SCALE

Human. Bus. Whale.
Pick your reference.

RELATIVE LENGTH · 0–24 METERS
ACookiecutter sharkabout 0.56 m / 22 in
BWhitetip reef sharkreported to 2.13 m / 7 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.

MeasureCookiecutter sharkWhitetip reef shark
Length referenceabout 0.56 m / 22 inreported to 2.13 m / 7 ft
Weight referencelarge-adult reference about 5 kg / 11 lbreported near 18.3 kg / 40 lb
Bite forceNo dependable maximum foundUnknownNo dependable maximum foundUnknown
HabitatDeep tropical and subtropical oceansTropical Indo-Pacific reefs
DietPlugs of tissue from larger animals plus small preyOctopus, fishes and crustaceans
03

WHAT THE DATA CAN SAY

Size is not the whole animal.

Length and weight

Cookiecutter shark is represented by about 0.56 m / 22 in; Whitetip reef shark by reported to 2.13 m / 7 ft. Weight is a rounded comparison reference. The species is usually smaller than its reported maximum.

Bite evidence

Cookiecutter shark: Bite shape is documented; a comparable force maximum is not. Whitetip reef shark: No standardized maximum is used.

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 bite removes a round plug; size alone does not predict ecological impact. Its slim body lets it hunt inside reef crevices.

04

TRACE THE CLAIMS

Sources and limits.

Cookiecutter sharkSmithsonian OceanWhitetip reef sharkFlorida MuseumHow we standardize comparisonsRead the methodology →