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Photograph by William R. Curtsinger
Sunlight passing through the ocean's surface makes patterns and shadows on the seafloor in the Cayman Islands. -
Photograph by Maria Stenzel
An orange-colored moon looks like it's sitting on top of this massive iceberg near Antarctica. This region is home to elephant seals and Adélie penguins. -
Photograph by Bill Ellzey
Waves at high tide crash on shore near Kalbarri National Park in Western Australia. Ocean tides are created by the pull of the moon and sun on the Earth. -
Photograph by Paul Chesley
Mist floats above a large wave breaking near shore on one of the islands of the Republic of Palau. -
Photograph by O. Louis Mazzatenta
These strange-looking blobs in Shark Bay, Australia, are called stromatolite reefs. They were common 3.5 billion years ago, but they are very rare today. -
Photograph by Maria Stenzel
Huge waves churn in the waters around Antarctica. Antarctica's freezing land has little life, but its waters are full of specially adapted plants and animals. -
Photograph by Gordon Wiltsie
This piece of land in Chile, South America, is called Cape Horn. It is the meeting point of the world's two largest oceans, the Atlantic and the Pacific.
