Photographer's Note

Photo taken in the desert of shot el Jerid.
A place full of wonderful landscapes and various compounds as a flora and fauna is diverse.

the pink sands:
The pink sands is an evaporite rock formed by crystallization lenticular soluble minerals, and whose provision recalls the petals of a rose.

The formation of pink sand comes from the evaporation of water infiltrated. These crystals are very often encountered in soft terrain (sand, clay), primarily in the deserts.

The main mineral involved in this process is gypsum (hydrated calcium sulfate), but roses sand can also be composed of other minerals such as barite (barium sulfate).

The Peregrine Falcon:
The fastest bird in the world live in Tunisia, in the rocky cliffs of the ridge Tunisia.
This is the peregrine falcon (Falco peregrinus).
With a cruising speed of 110 km / h, it can reach a speed of 300 km / h when it bites its prey.

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Additional Photos by Yves Triga (Yves-triga) Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 414 W: 46 N: 389] (5149)
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