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This male dancing fiddler crab (Uca terpsichores) has built a sand “hood” at the entrance to his burrow, which he hopes will attract females to his humble abode—as if that big beautiful claw of his weren't enough!
Article

The Design of a Beautiful Weapon

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Rough periwinkles sit on a bed of barnacles.
Article

Spirals in Time: A Walk at the Seashore

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Horizontal bands of color represent different species of lichen that have adapted to the conditions at different heights above sea level.
Article

Seaside Lichens

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Microscopic beach dweller in the sand.
Video

Organisms Beneath the Sand

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Sea star in a tide pool
Photo

Tide Pools and Adaptations

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The velvet crab's aggressive nature has earned it the nickname devil's crab.
Photo

The Velvet Swimming Crab

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A juvenile Kemp's ridley sea turtle emerges from the nest
Article

Taking the Temperature of the Kemp's Ridley Sea Turtle

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On Moorea, an island in French Polynesia, researchers are striving to complete a biocode—a DNA catalog of every life form big enough to pick up with tweezers.
Overview

Scientists Catalog Life on the Island of Moorea

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The Peninsula Valdes in Argentina was inscribed on the World Heritage List in 1999. The site is home to important breeding populations of the endangered southern right whale (Eubalaena australis), southern elephant seal (Mirounga leonina), and southern sea
Slideshow

Marine World Heritage Photo Gallery

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