Sea urchin detail. Close-up of the spines and the ambulacral system of a purple sea urchin (Paracentrotus lividus). The ambulacral, or water vascular,

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Sea urchin detail. Close-up of the spines and the ambulacral system of a purple sea urchin (Paracentrotus lividus). The ambulacral, or water vascular, system is a network of fluid-filled canals unique to echinoderms, which functions in gas exchange, feeding, and locomotion. Photographed in the Mediterranean Sea, Alicante, Spain.

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Size: 5116px × 3425px
Photo credit: © ANGEL FITOR/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: -water, alicante, ambulacral, anatomical, anatomy, animal, aquatic, biological, biology, close-, detail, echinoderm, europe, european, gas-exchange, invertebrate, invertebrates, lividus, locomotion, macro, marine, mediterranean, mouth, movement, orifice, paracentrotus, purple, red, sea, spain, spanish, spine, spines, spiny, system, underwater, urchin, vascular, water, zoological, zoology