Crocodilia
Crocodilia (or Crocodylia) is an order of large reptiles. They are the closest living relatives of birds, as the two groups are the only known survivors of the Archosauria.
The correct vernacular term for this group is "crocodilians" and it includes the alligator, caiman, crocodile, and gharial families. The term 'crocodiles' is sometimes used to refer to alligators and caiman, or even their distant prehistoric relatives, "marine crocodiles".
Source: en.wikipedia.org/wiki/Crocodilia - 19.09.2009
Crocodile in the Water
The back does not only look robust, but it is so because of the exoskeleton under the skin, why the Crocodile got the name armoured reptile.
photo: / pixelio.de
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