a close-up photo of a frog (pelophylax ridibundus) floating in the water of a swamp while it croaks

amphibia amphibian animal aquatic beautiful beauty nature biology camouflage closeup croak croaking cute ecology environment environmental eye eyes face fauna frog green head lake looking macro marsh outdoors pelophylax ridibundus pond portrait pretty quack sitting small spring summer swamp vertebrate water wet wild wildlife zoology close-up floating croaks