Close-up of a water frog sitting on a stone Close-up of a green water frog Rana Esculenta sitting strikingly on a stone, Germany Copyright: xZoonar.com/ACHIMxSCHNEIDERx 21155026

Royalty-Free Standard Commercial licenses are granted for worldwide, non-exclusive and perpetual use, unless specifically noted otherwise. All Royalty-Free transactions are final. The Royalty-Free Standard Commercial license has no limitations and covers up to 15 users.