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Open OceanPredator

Sailfish

Istiophorus platypterus

A color-changing sail helps herd dinner into reach.

Sailfish carry a spectacular dorsal fin that towers above the body like a sail. Working alone or together, they corral schooling prey and slash with their long bills.

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SeaRealm card featuring Sailfish

From field guide to game table

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1 deck

Quick dive

Creature passport

Home
They roam tropical and subtropical Atlantic, Pacific, and Indian Ocean waters.
Favorite foods
They eat sardines, anchovies, mackerel, jacks, squid, and other schooling prey.
Size check
Up to about 11 ft (3.4 m), including the bill—small-car length

Tell-your-friends facts

Four wonderfully wild things

  1. 1

    The sail can fold into a groove to reduce drag while cruising.

  2. 2

    Its bill stuns or injures prey with quick sideways slashes.

  3. 3

    Body bars can brighten when a sailfish is excited or hunting.

  4. 4

    Young sailfish can grow more than four feet long in their first year.

Ocean superpower

Built to be amazing

The huge sail flashes color and helps fence nervous prey into a tight group.

Junior scientist tip

What should I look for?

Spot a long round bill and an enormous dark-blue sail dotted with black.

Grown-up research links

We used trusted science organizations to check this profile.