SHARK VS SHARK

Common threshervsEpaulette shark

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

LivingAlopias vulpinus×LivingHemiscyllium ocellatum
QUICK VERDICT

Common thresher is about 7.1× longer by these reference values.

Common thresher uses a 7.6 m upper reference, compared with 1.07 m for Epaulette shark. Common thresher's weight reference is about 113× heavier.

01

ON THE SAME SCALE

Human. Bus. Whale.
Pick your reference.

RELATIVE LENGTH · 0–24 METERS
ACommon thresherreported to 7.6 m / 24.9 ft
BEpaulette sharkreported to 1.07 m / 3.5 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.

MeasureCommon thresherEpaulette shark
Length referencereported to 7.6 m / 24.9 ftreported to 1.07 m / 3.5 ft
Weight referencerecorded over 340 kg / 750 lblarge-adult reference about 3 kg / 6.6 lb
Bite forceNo dependable maximum foundUnknownNo dependable maximum foundUnknown
HabitatTemperate and tropical open watersShallow coral reefs of Australia and New Guinea
DietSchooling fishes and squidWorms, crustaceans and small fishes
03

WHAT THE DATA CAN SAY

Size is not the whole animal.

Length and weight

Common thresher is represented by reported to 7.6 m / 24.9 ft; Epaulette shark by reported to 1.07 m / 3.5 ft. Length comparisons can exaggerate body bulk because the tail is exceptionally long. Mass varies strongly with size and is shown only as a reference.

Bite evidence

Common thresher: Its hunting performance cannot be reduced to jaw force. Epaulette 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

Much of its length is tail, which it uses to stun prey. It can use its fins to walk across reef flats and tolerate low oxygen.

04

TRACE THE CLAIMS

Sources and limits.

Common thresherFlorida MuseumEpaulette sharkAustralian MuseumHow we standardize comparisonsRead the methodology →