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It allows the crayfish to burrow into the river bed and leave its eyes protruding to look for danger.
A crayfish eye is small and typically black in color. It has a compound structure with many tiny lenses that allow the crayfish to see movement and changes in light. They are located on stalks on either side of the crayfish's head.
under the eyes
compound
The function of the compound eyes on a crayfish is to allow them to see more of their surroundings and spot predators. Unlike predators, they must see all around them to give them the best chance of escape.
Crayfish have the ability to regenerate practically any appendage that gets broken off. They can regrow legs, claws,antennae, even eyes if they happen to get snipped off in a fight.
The crayfish's eyes can move and most of the time , it is to protect the eyes so it moves into a "case".
eyes, blood, brain and sum gooey guts
crayfish have six antennae
a crayfish can have up to 100 babies.
Crayfish have a total of 5 swimmerets
Crayfish have developed eyes on short stems that help them see their environment. They have adapted to blend in with their surroundings and have pincers to help them defend themselves.