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Two nurse sharks hover over a baited cage
Lesson Plan

Why Do We Explore the Ocean?

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An unidentified earplug from the National Museum of Natural History collection.
Article

Ocean Objects of Wonder

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A vaquita pops its head out of the water.
Slideshow

Vaquitas in Peril

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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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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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Alvin, a human occupied vehicle (HOV), returns to the ship after a dive.
Article

From Submarines to Robots: Exploring the Deep Ocean

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An assortment of microbe illustrations seen by Leeuwenhoek under the microscope.
Timeline

Milestones In Marine Microbiology

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A vaquita swim in the ocean.
Timeline

A History Entwined: Vaquita, Totoaba, Fishermen

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A team of scientists explore the Arctic ocean.
Slideshow

Under Arctic Ice

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An 'austral' or southern breeder, Great Shearwaters (Ardenna gravis) migrate from breeding islands far to the south in the Atlantic before traveling to the Northern Atlantic to feed.
Slideshow

Migratory Seabirds: A Slideshow

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