Predators don’t have a hop in hell of seeing this crafty frog – whose see through skin makes it almost invisible. The Fleishman’s Glass Frog appears to change colour when it moves because the background shows through its transparent flesh…However, despite it’s amazing camouflage you can still see its heart, intestines, and red blood vessels. Photographer Thomas Marent snapped the frogs – with bulging yellow eyes – underneath leaves at a nature reserve in Choco, Colombia. SEE OUR COPY FOR DETAILS…Pictured: Northern Glassfrog eggs with fully developed tadpoles…Please byline: Thomas Marent/Minden/Solent..© Thomas Marent/Minden Pictures/Solent News & Photo Agency.UK +44 (0) 2380 458800.