Like the plot of a 70's sci-fi B movie, the world's amphibians are being wiped out by a deadly fungus that threatens to kill off over a third of all species globally. This film features the amphibian bogeyman as seen under the microscope. The larger circles are the fungal bodies which embed themselves in the frogs skin cells. These then rupture and release spores from the frog skin ready to infect more frogs. These spores are the smaller dots we see whizzing about in the frame.