The five oceans of the world, arranged by size, include the Pacific, Atlantic, Indian, Southern and the Arctic. The oceans form part of the earth's hydrosphere and cover approximately 71 percent of the earth's surface.
The Pacific Ocean covers 60,060,700 square miles, almost 28 percent of the earth. The ocean extends between Asia, Australia, the Southern Ocean and the Western Hemisphere. Its average depth is 13,215 feet. The Equator divides it into the North and South Pacific Ocean.
The Atlantic Ocean stretches between Africa, Europe, Western Hemisphere and the Southern Ocean. It has various other water bodies, such as the Black Sea, Caribbean Sea, Mediterranean Sea and the North Sea. Its average depth is 12,880 feet it is home to a wide array of marine species including the sperm whale, which is the largest living toothed animal in the world.
The Indian Ocean has an average depth of 13,002 feet. The ocean is between Africa, Asia, Australia and the Southern Ocean. It comprises of water bodies such as the Gulf of Oman, Gulf of Eden, the Andaman and the Arabian. The ocean causes monsoonal weather patterns that dominate southeast Asia.
The Southern Ocean extends from the coast of Antarctica and has an average depth of between 13,100 and 16,400 feet. The Arctic Ocean extends between North America, Europe and Asia, with an average depth of 3,953 feet.