Crayfish have two pairs of antennae. The short pair are called antennules. Antennules are used to taste the water and food. The long antennae are used for the sense of touch and helps the crayfish find food and feel vibrations of predators swimming nearby.

Do crayfish have antennae how many?

The head also has a set of eyes that are mounted on stalks called PEDICLES. If you watch a live crayfish, you can see the eyes move independently. The crayfish also has two sets of ANTENNAS that help them gather information about their environement.

What are 5 facts about crayfish?

• Before they are cooked to bright-red perfection, crawfish can be blue, green, white or yellow.
• Crawfish walk forward and swim backward because they have four legs for walking and four for swimming.
• Crawfish can live up to 30 years in the wild.