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Vibrant coloured male Three-spined stickleback, Gasterosteus aculeatus, in estuarine waters. Males get coloured like this during spawning season.
Photo ID: three-spined-stickleback-gasterosteus-aculeatus-01
© Eiko Jones 2020
Photo size: 24.9 Mpixels (71.1 MB uncompressed) - 6103x4073 pixels (20.3x13.6 in / 51.7x34.5 cm at 300 ppi)