Armed with their hard shells and powerful claws, they search for food. Meanwhile, swarms of fish roam the depths also looking for a bite to eat. The triggerfish looks for a wandering crab in a reef while a school of tuna pass by. They must stay alert, because the ferocious tiger shark is looking for its prey. In shallow depths, the plant life flourishes.
Sunlight beams down on the different types of algae.
These simple plants serve as food for many animals of the sea. In the deeper parts of the ocean, the largest animal known is swimming around. The giant blue whale, which can reach 80 feet in length, is a mammal . A family of dolphins plays nearby, but must beware of the pod of killer whales looking for a meal. Together, these plants and animals make up what we call sea life.