SHARK VS SHARK

Nurse sharkvsShortfin mako

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

LivingGinglymostoma cirratum×LivingIsurus oxyrinchus
QUICK VERDICT

Shortfin mako is about 1.44× longer by these reference values.

Shortfin mako uses a 4.45 m upper reference, compared with 3.08 m for Nurse shark. Shortfin mako's weight reference is about 5.2× heavier.

01

ON THE SAME SCALE

Human. Bus. Whale.
Pick your reference.

RELATIVE LENGTH · 0–24 METERS
ANurse sharkrecorded to 3.08 m / 10.1 ft
BShortfin makoreported to about 4.45 m / 14.6 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.

MeasureNurse sharkShortfin mako
Length referencerecorded to 3.08 m / 10.1 ftreported to about 4.45 m / 14.6 ft
Weight referencelarge-adult reference about 110 kg / 243 lbrecorded to about 570 kg / 1,257 lb
Bite forceNo dependable maximum foundUnknownNo dependable maximum foundUnknown
HabitatWarm reefs, flats and mangrovesOpen tropical and temperate oceans
DietFishes, rays, mollusks and crustaceansFast fishes, squid and other sharks
03

WHAT THE DATA CAN SAY

Size is not the whole animal.

Length and weight

Nurse shark is represented by recorded to 3.08 m / 10.1 ft; Shortfin mako by reported to about 4.45 m / 14.6 ft. Length is a recorded maximum; mass is a rounded adult reference. Record length and mass do not necessarily describe the same individual.

Bite evidence

Nurse shark: Suction performance is central to feeding and is not captured by bite-force rankings. Shortfin mako: No directly comparable maximum bite-force estimate 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

A small mouth and powerful suction suit its bottom-feeding life. Speed is its signature; the biggest animals are unusual and hard to verify.

04

TRACE THE CLAIMS

Sources and limits.

Nurse sharkFlorida MuseumShortfin makoFlorida MuseumHow we standardize comparisonsRead the methodology →