SHARK VS SHARK

Dwarf lanternsharkvsMegalodon

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

LivingEtmopterus perryi×ExtinctOtodus megalodon
QUICK VERDICT

Megalodon is about 73× longer by these reference values.

Megalodon uses a 15.3 m upper reference, compared with 0.21 m for Dwarf lanternshark. Megalodon's weight reference is about 240000× heavier.

01

ON THE SAME SCALE

Human. Bus. Whale.
Pick your reference.

RELATIVE LENGTH · 0–24 METERS
ADwarf lanternsharkabout 0.21 m / 8.3 in
BMegalodonevidence-based upper estimate 14.1–15.3 m / 46–50 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.

MeasureDwarf lanternsharkMegalodon
Length referenceabout 0.21 m / 8.3 inevidence-based upper estimate 14.1–15.3 m / 46–50 ft
Weight referencerough reference about 0.2 kg / 0.4 lbmodeled reference around 48,000 kg / 53 tons
Bite forceNo dependable maximum foundUnknownmodeled range about 108,514–182,201 NModeled
TimeDeep Caribbean slopesabout 20–3.6 million years ago
DietSmall crustaceans and fishesLarge marine mammals, turtles and fishes
03

WHAT THE DATA CAN SAY

Size is not the whole animal.

Length and weight

Dwarf lanternshark is represented by about 0.21 m / 8.3 in; Megalodon by evidence-based upper estimate 14.1–15.3 m / 46–50 ft. Tiny sample sizes make the exact maximum provisional. No complete skeleton exists; 15.3 m is an evidence-based maximum from museum specimens, not a tape measurement.

Bite evidence

Dwarf lanternshark: No standardized maximum is available. Megalodon: Finite-element scaling produced a range, not a directly measured bite.

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

One of the smallest known sharks also produces light. Nearly every whole-body number is reconstructed from teeth and comparisons with living sharks.

04

TRACE THE CLAIMS

Sources and limits.

Dwarf lanternsharkSmithsonian OceanMegalodonWroe et al. (2008) + Shimada et al. (2020)How we standardize comparisonsRead the methodology →