Image of Laptev Sea walrus
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Laptev Sea Walrus

Odobenus rosmarus divergens (Illiger 1815)


Odobenus rosmarus divergens (Laptev Sea Walrus) is a subspecies of mammals in the family walruses. They are listed in cites appendix iii. Individuals can grow to 320 cm. They rely on lift powered swimming to move around.

  • URI: http://eol.org/schema/terms/CITES_III
  • Definition: Appendix III is a list of species included at the request of a Party that already regulates trade in the species and that needs the cooperation of other countries to prevent unsustainable or illegal exploitation. International trade in specimens of species listed in this Appendix is allowed only on presentation of the appropriate permits or certificates. (See Article V of the Convention)
  • Source: https://www.speciesplus.net/#/taxon_concepts/12181/legal
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  • URI: https://eol.org/schema/terms/lift_based_swimming
  • Definition: Hydrofoils, or fins, are used to push against the water to create a normal force to provide thrust, propelling the animal through water. The reduction of fin cross-sectional area helps to minimize drag, and therefore increase efficiency. Regardless of size of the animal, at any particular speed, maximum possible lift is proportional to (wing area) x (speed)<sup>2</sup>. Dolphins and whales have large, horizontal caudal hydrofoils, while many fish and sharks have vertical caudal hydrofoils.
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EOL has data for 12 attributes, including:

Known occurrences, collected specimens and observations of Laptev Sea walrus. View this species on GBIF