Bluntnose sixgill is about 1.60× longer by these reference values.
Bluntnose sixgill uses a 4.8 m upper reference, compared with 3 m for Lemon shark. Bluntnose sixgill's weight reference is about 2.4× 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
Lemon shark is represented by commonly to 3 m / 10 ft; Bluntnose sixgill by reported to 4.8 m / 15.8 ft. The values are upper-end figures, not a typical adult profile. Deepwater sampling is difficult, so upper records are sparse.
Bite evidence
Lemon shark: No standardized maximum is available for a fair cross-species comparison. 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
Decades of field research make this one of the best-studied coastal sharks. Its six gill slits mark an ancient branch of shark diversity.
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