You Know Seal.

Seals are mammals of the order Carnivora, living in a cool area. At first, seals belong to the suborder Pinnipedia, but now it has shifted the suborder category into a category superfamilia. Currently, seals inserted into the suborder Caniformia with family Odobenidae (walrus / walrus), Otariidae (sea lions), and Phocidae. Recent molecular analysis has shown that the seal bears the closest living relatives. Another hypothesis says that the seals are true seals polyphyletic with the ancestral form of animals such as the beaver, while other types of seals derived from a common ancestor of animals such as bears, but recent molecular studies that have been mentioned previously assured that all types of seals is monophyletic, which is derived from a common ancestor.

Information. 

Seals are generally smooth bodied and quite large. His body is well adapted to their aquatic habitats, where they spent most of his life. For hands, large front legs and shaped like fins, and the body narrows to the rear. Smallest seals, Arctocephalus galapagoensis which weighs about 30 pounds for an adult size and length of 1.2 meters. Largest seals, namely southern elephant seals (Mirounga leonina) have a maximum length of up to 4 meters and a weight of 2200 kg.
All types of seals are carnivores that eat fish, squid and other marine animals. Leopard seals (Hydrurga leptonyx) is probably the largest predator among the types of other seals, which eat a variety of animals from krill, penguins to the other seals.

Familia. 

Pinnipedia, superfamilia name of seals, is derived from the Latin leg like a fin. Superfamilia has three families have been identified:
Odobenidae (walruses): with 1 species in 1 genus
Otariidae (sea lions): with 12 species in six genera
Phocidae (earless seals): with 19 species in 13 genera.
Thank you for reading this article. Written and posted by Bambang Sunarno.
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DatePublished: December 20, 2013 at 15:29
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Tag ; You Know Seal, Seals