SHARK VS SHARK

Nurse sharkvsSand tiger shark

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×LivingCarcharias taurus
QUICK VERDICT

Sand tiger shark is about 1.04× longer by these reference values.

These animals are effectively close in maximum-length terms, so measurement uncertainty can matter more than the apparent difference. Sand tiger shark's weight reference is about 1.45× 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
BSand tiger sharkreported to about 3.2 m / 10.5 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.

MeasureNurse sharkSand tiger shark
Length referencerecorded to 3.08 m / 10.1 ftreported to about 3.2 m / 10.5 ft
Weight referencelarge-adult reference about 110 kg / 243 lbreported to about 159 kg / 350 lb
Bite forceNo dependable maximum foundUnknownNo dependable maximum foundUnknown
HabitatWarm reefs, flats and mangrovesTemperate and subtropical coasts
DietFishes, rays, mollusks and crustaceansFishes, rays, squid and crustaceans
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; Sand tiger shark by reported to about 3.2 m / 10.5 ft. Length is a recorded maximum; mass is a rounded adult reference. Upper records vary by region and source.

Bite evidence

Nurse shark: Suction performance is central to feeding and is not captured by bite-force rankings. Sand tiger shark: A reliable comparable maximum was not found.

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. Its protruding teeth look dramatic, but appearance alone does not reveal bite force.

04

TRACE THE CLAIMS

Sources and limits.

Nurse sharkFlorida MuseumSand tiger sharkFlorida MuseumHow we standardize comparisonsRead the methodology →