SHARKS

  •  https://en.wikipedia.org
     
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They are jawed vertebrates with paired fins, paired nares, scales, a heart with its chambers in series, and skeletons made of cartilage rather than bone.
0 comments | Website submitted by nejikan » 29 Jul 2017 23:48 Arriba
  •  http://www.gma.org
     
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CARTILAGINOUS FISHES. CLASS CHONDRICHTHYES
The Shark and Skate Tribes, and the Chimaeroids.

PECES CARTILAGINOSOS. CLASE CHONDRICHTHYES
Las tribus del tiburón y del patín, y los quimioides.
0 comments | Website submitted by nejikan » 29 Jul 2017 23:45 Arriba
  •  http://elasmo.org/
     
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​The American Elasmobranch Society is a non-profit organization that seeks to advance the scientific study of living and fossil sharks, skates, rays, and chimaeras.
0 comments | Website submitted by nejikan » 29 Jul 2017 23:43 Arriba