The Atlantic Ocean is filled with interesting organisms from invertebrates to mammals. Look in each section to find out about animals from the sea.

Invertebrates

• Porifera (Sponges)
• Rotifera (Rotifers)
• Annelida (Worms)
• Cnidaria (Anemones, jellyfish)
• Mollusca (Mussels, snails, squid)
• Crustacea (Crab, lobster, barnacle)
• Echinodermata (Sea urchins, sea stars, sea cucumbers)

Vertebrates

• Fish
• Birds
• Mammals