SIMON FRASER / SCIENCE PHOTO LIBRARY SIMON FRASER / SCIENCE PHOTO LIBRARY
Coral reef research. Plastic resin mould being made of a coral exoskeleton during research into coral reefs. Details of the structure can be used to identify coral species. Corals are microscopic marine polyps that form colonies and secrete minerals to build the exoskeleton structure seen here. Photographed at the University of Newcastle, UK.
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