slideshow

Backbone of Biodiversity at Risk

The International Union for the Conservation of Nature (IUCN) maintains the...

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What is the Biggest Shark? A Chart Shows the Diversity of Shark Sizes

Sharks come in all sizes. The largest is the whale shark, which has been known to...

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Ancient Giant Megatooth Shark

A scientific illustration of the most powerful fish of its time, Carcharocles...

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Illustration of Helicoprion

This illustration shows one old idea of what the ancient shark Helicoprion might...

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Shark Senses

Sharks have six highly refined senses: smell, hearing, touch, taste, sight, and...

Article

Why Are We So Afraid of Sharks? It Could Be the Background Music

Remember the first time you watched Jaws? Can you hear John Williams’ spine...

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Blacktip Sharks by Enric Sala

Enric Sala has spent much of his career looking for the ocean's "time machines" --...

Personal Perspectives

The Big Five of the Ocean: Exploring the Waters of East Africa

When we think "Africa," we think of the "Big Five"—lions, elephants, leopards,...