Blue Shark
Prionace glauca
Long-winged and bright blue, this shark never stops roaming.
Blue sharks are graceful open-ocean wanderers with exceptionally long pectoral fins. Their cobalt backs fade to brilliant white bellies, perfect camouflage in deep blue water.
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From field guide to game table
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Quick dive
Creature passport
- Home
- They cross temperate and tropical oceans, often following cooler water and prey.
- Favorite foods
- They mainly eat squid and fishes, plus cuttlefish, octopuses, and crustaceans.
- Size check
- Commonly 6-9 ft; up to about 12 ft (3.8 m)—small-car length
Tell-your-friends facts
Four wonderfully wild things
- 1
Blue sharks make some of the longest migrations recorded for sharks.
- 2
They often hunt squid at night when the prey rises toward the surface.
- 3
Females give birth to live pups, sometimes in very large litters.
- 4
The pointed snout and slender body are more delicate-looking than many requiem sharks.
Ocean superpower
Built to be amazing
Extra-long pectoral fins provide efficient lift during enormous ocean journeys.
Junior scientist tip
What should I look for?
Look for a vivid blue back, narrow snout, and remarkably long side fins.
Grown-up research links
We used trusted science organizations to check this profile.