a female marsh frog with lumpy brown and dark brown splotches skin laying on a thick light green mat of weed on the surface of a

amphibian animal aquatic brown calm chytridiomycosis closeup cute england environment eye eyes fauna female floating freshwater frog green head invasive kingdom lake marsh natural nature nonnative outdoor pelophylax plant pond rana reserved ridibundus spots surface swamp tranquil united water weed wet wild wildlife