Whale shark is about 4.0× longer by these reference values.
Whale shark uses a 12.2 m upper reference, compared with 3.08 m for Nurse shark. Whale shark's weight reference is about 191× heavier.
ON THE SAME SCALE
Human. Bus. Whale.
Pick your reference.
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.
THE NUMBERS
Side by side.
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; Whale shark by well documented near 12.2 m / 40 ft. Length is a recorded maximum; mass is a rounded adult reference. Exceptional historical lengths exist, but 12.2 m is a conservative comparison value.
Bite evidence
Nurse shark: Suction performance is central to feeding and is not captured by bite-force rankings. Whale shark: Whale sharks filter feed; a comparable maximum bite-force study is not available.
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. The largest living fish is a filter feeder, so a predatory bite ranking would mislead.
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