Scientific Illustration

Galeus glaucus now called Prionace glauca the blue shark by BioDivLibrary on Flickr.

Blue sharks give birth to live young and can deliver up to 135 pups per litter. Courtship is believed to involve biting by the male, as mature specimens can be accurately sexed according to the presence or absence of bite scarring. Female blue sharks have adapted to the rigorous mating ritual by developing skin 3 times thicker than male skin.

The blue shark is listed as Near Threatened by the IUCN

The Plagiostomia : Sharks, skates, and rays
Cambridge, U.S.A. :Printed for the Museum,1913.
biodiversitylibrary.org/page/4371365

Tagged: Chondrichthyes Rays (Fishes) Sharks Harvard University MCZ Ernst Mayr Library Galeus glaucus Prionace glauca

Posted on August 27, 2012 with 50 notes
Carcharodon carcharias as Carcharias lamia - the Great white shark by BioDivLibrary on Flickr.

Systematische Beschreibung der Plagiostomen /.
Berlin :Veit,1841..
biodiversitylibrary.org/page/6353134

Tagged: Chondrichthyes Classification Identification Harvard University MCZ Ernst Mayr Library shark Carcharodon carcharias Carcharias lamia Great white shark

Posted on August 25, 2012 with 51 notes
Oxyrhina glauca now called Isurus oxyrinchus - the Shortfin mako shark by BioDivLibrary on Flickr.

Systematische Beschreibung der Plagiostomen /.
Berlin :Veit,1841..
biodiversitylibrary.org/page/6353168

Tagged: Chondrichthyes Classification Identification Harvard University MCZ Ernst Mayr Library shark Oxyrhina glauca Isurus oxyrinchus Shortfin mako shark mako shark

Posted on August 22, 2012 with 95 notes
The Plagiostomia : Sharks, skates, and rays by BioDivLibrary on Flickr.

Cambridge, U.S.A. :Printed for the Museum,1913.
biodiversitylibrary.org/page/4371377

Tagged: Chondrichthyes Rays (Fishes) Sharks Harvard University MCZ Ernst Mayr Library

Posted on August 14, 2012 with 108 notes
Carcharias oxyrhynchus now called Isogomphodon oxyrhynchus - the Daggernose shark by BioDivLibrary on Flickr.

Systematische Beschreibung der Plagiostomen /.
Berlin :Veit,1841..
biodiversitylibrary.org/page/6353140

Tagged: Chondrichthyes Classification Identification Harvard University MCZ Ernst Mayr Library shark Carcharias oxyrhynchus Isogomphodon oxyrhynchus Daggernose shark

Posted on August 13, 2012 with 42 notes
Apontamentos para a icthyologia de Portugal by BioDivLibrary on Flickr.

Lisboa :Typographia da Academia Real das Sciencias,1866..
biodiversitylibrary.org/page/3706647

Tagged: Chondrichthyes Dogfish Portugal Harvard University MCZ Ernst Mayr Library

Posted on August 6, 2012 with 69 notes
Systematische Beschreibung der Plagiostomen by BioDivLibrary on Flickr.

Berlin :Veit,1841..
biodiversitylibrary.org/page/6353180

Tagged: Chondrichthyes Classification Identification Harvard University MCZ Ernst Mayr Library

Posted on August 2, 2012 with 14 notes
Systematische Beschreibung der Plagiostomen by BioDivLibrary on Flickr.

Berlin :Veit,1841..
biodiversitylibrary.org/page/6353148

Tagged: Chondrichthyes Classification Identification Harvard University MCZ Ernst Mayr Library shark

Posted on August 2, 2012 with 14 notes
Apontamentos para a icthyologia de Portugal by BioDivLibrary on Flickr.

Lisboa :Typographia da Academia Real das Sciencias,1866..
biodiversitylibrary.org/page/3706645

Tagged: Chondrichthyes Dogfish Portugal Harvard University MCZ Ernst Mayr Library

Posted on August 1, 2012 with 57 notes
Apontamentos para a icthyologia de Portugal by BioDivLibrary on Flickr.

Lisboa :Typographia da Academia Real das Sciencias,1866..
biodiversitylibrary.org/page/3706649

Tagged: Chondrichthyes Dogfish Portugal Harvard University MCZ Ernst Mayr Library shark fish

Posted on July 29, 2012 with 84 notes

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