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Jellyfish :)

Sharks, rays, and skates. Their skeletal structure is cartilage and not bone.

Molluscs (snails, clams, squids) and Arthropods (crabs, shrimp, grasshoppers, scorpions) don't have an internal skeletal structure. Arthropods have a hard shell made of cuticle (what your finger nails are made of) that protects their internal organs.

Other animals from different family's include worms, sea sponges, bacteria, and starfish.

Pretty much any invertebrate, which make up 95% of all animal species.

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15y ago

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