Identify the animal below that is not in the same class as the others.

Crayfish

Crabs

Scorpions

Lobsters

Scorpion does not belong to the group. Scorpions are part of the class, arachnid. The Crayfish, the crabs and lobsters are part of the class crustaceans. Crustaceans have five legs are normally found in the water. Scorpions are terrestrial and are often found on land