Goblin shark is about 1.29× longer by these reference values.
Goblin shark uses a 6.17 m upper reference, compared with 4.8 m for Bluntnose sixgill. Bluntnose sixgill's weight reference is about 2.8× 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
Goblin shark is represented by photo-based estimates to 5.4–6.17 m / 18–20 ft; Bluntnose sixgill by reported to 4.8 m / 15.8 ft. The longest figures come from regression estimates based on photographs. Deepwater sampling is difficult, so upper records are sparse.
Bite evidence
Goblin shark: Jaw speed and protrusion are not the same measurement as bite force. 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 jaws shoot forward rapidly; maximum body size remains uncertain. Its six gill slits mark an ancient branch of shark diversity.
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