This is a sheep that died in a bog. The top of the back of the sheep was exposed, and rotted away, leaving the spine and portions of the top of the ribcage visible. However, the portion of the sheep below the surface of the water has been preserved intact.
Thousands of #migrants risk their lives to get to #Europe by crossing the #Mediterranean. They do so to escape war, persecution or poverty. Many do not survive the journey. Read more about it in the article at http://one-europe.info/mediterranean-sea-of-migrants-in-danger