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Sailfish
Photo: Sailfish chasing a school of fish
WALLPAPER

Officially the world's fastest fish, sailfish can reach speeds of 68 miles an hour (109 kilometers an hour) in short bursts. They often hunt in groups and use their quickness and impressive dorsal fins to herd schools of sardines or anchovies.

Photograph by John Lewis
Sailfish Profile Page

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Fish Features
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Strange Terrain

Predators erupt from volcanic sands, and delicate pygmy seahorses hide in plain sight in the strange world of Indonesia's Lembeh Strait.

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Photo: A sailfish circling a ball of sardines

In the Whirl

Like wolves on a caribou herd, sailfish cooperate to get their meal. The hunt is on.

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