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Groupers are teleosts, typically having a stout body
and a large mouth. They are not built for
long-distance fast swimming. They can be quite
large, and lengths over a meter and weights up to
100 kg are not uncommon, though obviously in such
a large group species vary considerably. They
swallow prey rather than biting pieces off it. They do
not have much tooth on the edges of their jaws, but
they have heavy crushing tooth plates inside the
pharynx. They habitually eat fish, octopus, crab, and
lobster.
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