SHARK VS SHARK

Blue sharkvsHybodus

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

LivingPrionace glauca×ExtinctHybodus hauffianus
QUICK VERDICT

Blue shark is about 1.52× longer by these reference values.

Blue shark uses a 3.8 m upper reference, compared with 2.5 m for Hybodus. A clean mass ratio is not shown because at least one weight is not reliably reconstructed.

01

ON THE SAME SCALE

Human. Bus. Whale.
Pick your reference.

RELATIVE LENGTH · 0–24 METERS
ABlue sharkabout 3.8 m / 12.5 ft
BHybodusabout 2.5 m / 8.2 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.

MeasureBlue sharkHybodus
Length referenceabout 3.8 m / 12.5 ftabout 2.5 m / 8.2 ft
Weight referencereported near 206 kg / 454 lbNot reliably reconstructed
Bite forceNo dependable maximum foundUnknownNo defensible estimate usedUnknown
TimeOpen temperate and tropical oceansabout 250–100 million years ago
DietSmall fishes and squidFishes and hard-shelled prey
03

WHAT THE DATA CAN SAY

Size is not the whole animal.

Length and weight

Blue shark is represented by about 3.8 m / 12.5 ft; Hybodus by about 2.5 m / 8.2 ft. Upper records are uncommon; most adults are lighter. The genus spans a long interval and multiple species; this is a comparison reference.

Bite evidence

Blue shark: No comparable maximum is used. Hybodus: Tooth form suggests diet, not an exact force.

Living versus extinct

At least one animal is known from fossils. Fossil length, weight and bite estimates depend on which living analogues and scaling equations researchers choose.

Ecology changes the matchup

Its long fins and slender build matter more than raw bulk. It was a shark-line relative, not a member of a living shark order.

04

TRACE THE CLAIMS

Sources and limits.

Blue sharkFlorida MuseumHybodusNatural History MuseumHow we standardize comparisonsRead the methodology →