the.com/grouper

a fish that can swallow a small shark whole and then act innocent

means A large, big-mouthed fish of warm and tropical seas, prized at the table and known for sitting motionless before sucking in prey with a sudden gulp.

from The name comes through Portuguese 'garoupa,' the word fishermen used for these bulky reef fish; that word is thought to derive from a South American Tupi term, picked up in colonial Brazil. The English 'grouper' is a folk reshaping of 'garoupa' — note it has nothing to do with the English word 'group,' despite the tempting spelling.

size
Goliath grouper hits 800 pounds and eight feet
sex switch
Many are born female, later become male
hunting team
Signals eels to flush out hidden prey
vacuum mouth
Engulfs victims by suddenly opening cavernous jaws
lifespan
Some species live over 50 years
for instance

goliath grouper — largest grouper species, can exceed 400 pounds and live in atlantic reefs

nassau grouper — critically endangered caribbean species, once abundant but depleted by overfishing

giant grouper — indo-pacific species reaching 880 pounds, largest bony fish in coral reefs

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