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A stout grouper with a large open mouth beside a coral reef formation, a moray eel silhouette, and an octopus tentacle on a light gray background.

Sex-Changing Ambush Predators — How Well Do You Know Groupers?

Coral Reef Fish

Difficulty

Medium

Questions

41

Volts

2/q

Stout, patient, and built to swallow prey whole. Groupers are sex-changing reef giants that cooperate with moray eels and control harems of females. From goliath-sized records to DNA barcoding, this quiz covers the apex predators of the coral world.

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