Bluntnose sixgill is about 8.6× longer by these reference values.
Bluntnose sixgill uses a 4.8 m upper reference, compared with 0.56 m for Cookiecutter shark. Bluntnose sixgill's weight reference is about 118× 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; Bluntnose sixgill by reported to 4.8 m / 15.8 ft. Weight is a rounded comparison reference. Deepwater sampling is difficult, so upper records are sparse.
Bite evidence
Cookiecutter shark: Bite shape is documented; a comparable force maximum is not. Bluntnose sixgill: No standardized maximum is 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
Its bite removes a round plug; size alone does not predict ecological impact. Its six gill slits mark an ancient branch of shark diversity.
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