Nurse shark is about 5.5× longer by these reference values.
Nurse shark uses a 3.08 m upper reference, compared with 0.56 m for Cookiecutter shark. Nurse shark's weight reference is about 22× 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
Cookiecutter shark is represented by about 0.56 m / 22 in; Nurse shark by recorded to 3.08 m / 10.1 ft. Weight is a rounded comparison reference. Length is a recorded maximum; mass is a rounded adult reference.
Bite evidence
Cookiecutter shark: Bite shape is documented; a comparable force maximum is not. Nurse shark: Suction performance is central to feeding and is not captured by bite-force rankings.
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
Its bite removes a round plug; size alone does not predict ecological impact. A small mouth and powerful suction suit its bottom-feeding life.
TRACE THE CLAIMS