Article

What the Megalodon Left Behind

The largest shark ever to exist on this planet, Carcharocles megalodon, could grow...

video

Just How Big Is the Ocean?

The ocean, which we often break into five large ocean basins, covers 71 percent of...

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Exploring Ocean Life with an Underwater Vehicle

Studies along the Northwest Atlantic Ocean shelf break- the transition from...

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Squalicorax Shark Fossil

During the late Cretaceous period, Kansas was covered by a vast sea. There,...

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Mariana Trench

If you want to explore the depths of the ocean, you may want to go to the deepest...

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Smithsonian Shark Teeth collection

An array of teeth from the sand tiger shark Carcharias taurus. The Smithsonian...

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Fossil tooth spiral

This fossil tooth whorl of the ancient shark Helicoprion, dates back 290 million...

Lesson Plan

Undersea Geologic Features: Bathymetry

Students create models of undersea geologic features on a bathymetric chart....

Lesson Plan

Mapping the Ocean Floor

After an introduction in which students try to identify hidden objects by the...

Article

Making a Mark on the Ocean Floor

Until very recently oceanography was a field dominated by men. A seafaring career,...

Tracking volcanic rock to the shores of Belize

Mangrove Mystery – Where Did All the Pumice Come From? For years, scientists...