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  3. Grayfish

One of the 26 sharks on WAnimals

Grayfish (Alopias vulpinus)

Cartilaginous fish · Lamniformes · Alopiidae

Grayfish

Alopias vulpinus

Vulnerable

At high risk of extinction in the wild over the medium term.

Spotted something wrong?

Its extraordinary upper tail lobe, which can be almost half its total body length, is used like a whip to stun and daze whole shoals of fish before eating them.

Weight

200 kg – 510 kg

Size

2.7 m – 6.1 m

Life expectancy

40 years

Diet

Carnivore

Feeds mainly on other animals.

Activity

Irregular activity

Active at irregular times, by day or night depending on circumstances.

Social structure

Solitary

Lives and hunts alone, joining others only to breed.

Sighting difficulty

Moderate

Ocean
68countries75parks21dive sites

AI-generated images: illustrations, not photographs.

Fun facts

  • It uses its enormous tail fin like a whip to stun shoals of fish.
  • Its embryos practise oophagy, feeding on unfertilised eggs in the womb.
  • Thanks to that, it is already over a metre long at birth.

Life cycle and biology

Skeleton type
Vertebrate - cartilaginous skeleton (chondrichthyan fish)
Habitat and environment
Temperate and tropical coastal and oceanic waters worldwide, from the surface down to 650 m
Birth weight
1.14 - 1.5 m long at birth
Size at birth
1.14 - 1.5 m long at birth
Sexual maturity
Male: 8-14 years | Female: 7-13 years (some sources give 9-13.4 years)
Gestation / incubation
9 months
Litter / clutch size
2 to 7 young per litter (most commonly 2-4)

Sources consulted: Animal Diversity Web; Washington Dept. of Fish & Wildlife; IUCN Red List assessment; Marine Bio; Shark Guardian; Fishipedia; FishBase; Mexican Fish

Where to find it

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Where to see it

Parks and dive sites where this species has been documented — showing 20 of 96.

Related species

Other species in the catalogue with the most in common with Grayfish — same habitat, park, country, tags or family.

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How to help

The grayfish is classified as vulnerable. Organisations such as the IUCN, WWF and the Wildlife Conservation Society work specifically on its conservation and that of its habitat; looking into their programmes is a good starting point if you want to get involved.

It's documented in 17 protected areas — one reason why protecting these places matters for its conservation.

Keep exploring

Based on what we already know about grayfish.

Comments

Share an experience, a fun fact or a tip for seeing the grayfish.

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See full glossary
This page in other languages: Español · Deutsch · Français · Português · Italiano

The pins mark the parks and dive sites where its presence is documented.

See its range on the interactive map→
KomodoIndonesia
Galápagos National ParkEcuador
CalanquesFrance
Cinque TerreItaly
Alonissos and the Northern SporadesGreece
RedwoodUnited States
OlympicUnited States
Glacier BayUnited States
Channel IslandsUnited States
Pacific RimCanada
Elphinstone ReefEgypt
Brothers Islands (El Akhawein)Egypt
Darwin IslandEcuador
Wolf IslandEcuador
Cocos IslandCosta Rica
Malpelo IslandColombia
Channel Islands National ParkUnited States
La Jolla CoveUnited States
Revillagigedo Islands (Socorro)Mexico
Malapascua (thresher shark)Philippines
See all 75 parks
See all 21 dive sites
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Blacktip Reef Shark

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Short-snouted SeahorseVulnerable

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CountriesUnited States
ParksKomodoIndonesia
TagsCarnivore
Carnivore
Variable activity
Solitary
Vulnerable
Fish
Ocean

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