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A crayfish in its hiding place
How Do Crayfish Protect Themselves?
Crayfish have a hard shell that is covered with points, bumps, and
bristles. The shell is a little like a suit of armor. This keeps crayfish safe
from many predators. Crayfish also use their pincers for defense. When
a crayfish is threatened, it raises its pincers as a warning. If the threat
continues, the crayfish will use its pincers to attack.
Because crayfish find food with their antennae, they prowl around
mostly at night. During the day, crayfish find a place to hide under
a rock or log. By being active at night and hidden during the day,
crayfish are harder for predators to find.