true otter lufra vulgaris

animal animals armorial backwater banks beast biocoenosis biotic bog brute calla carnivore carnivorous community diver dragon duckweed eurasian european female fisheating forest gear helium iucn leaves limnodium list lutra mammal mammals marsh marshland mire otter palustris pond predation predator predatory prey raptor red river robin scum sedge senex slough spring swamp swampy swimmer true vulgaris water wetland whitefly wild