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Sleeper shark

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Title: Sleeper shark  
Author: World Heritage Encyclopedia
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Subject: Squaliformes, Somniosidae, Kondakovia longimana
Publisher: World Heritage Encyclopedia

Sleeper shark

Sleeper sharks
Somniosus sp.
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Order: Squaliformes
Family: Somniosidae
D. S. Jordan, 1888

Somniosidae is a family of sharks in the order Squaliformes, commonly known as sleeper sharks.[1]

Distribution and habitat

Somniosidae can be found in the following areas:

  • Arctic to subantarctic waters
  • all oceans
  • shelves in cold waters
  • continental and slopes
  • temperate and tropical waters[2]


Beaks recovered from the stomachs of sleeper sharks suggest that these sharks feed on Colossal squid.[3]



Main article: Hákarl

Greenland sharks or basking sharks of the family Somniosidae are hunted for food in Iceland. The shark carcass is traditionally fermented in a shallow pit, with stones placed on top of the shark, allowing poisonous internal fluids, like urea and trimethylamine oxide, to be pressed and drained out of the body. The meat is then cured for several months, rendering it safe for human consumption.[4]

Sharks portal


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