"common frogs" . . . . "common frog" . . . . . . . . . "Mountain frog" . . . . "frog" . . . . "Common frog" . . . . . . "European common brown frog" . "Frogs" . . . "European common frog" . "rana temporaria" . . "frogs" . "Common frog" . . . "common" . . . . "Common Frogs" . "Rana temporaria" . .