Grouper Fish have short bodies with big mouths, this makes it hard for them to swim fast. Typically, the grouper will lay in wait for their pray and swallow them whole, instead of biting or chewing on them. This is where their big mouths come in handy. They also use their big mouths for digging in sand to form their shelter. In addition to their mouths, the Grouper also has a strong suction which allows them to suck their prey in from longer distances.
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