Photo taken on Feb. 3, 2020 shows the newly-born thornback ray ‘Srecko’ (Happy) in an aquarium in Pula, Croatia. (Dusko Marusic/Pixsell via Xinhua)
Photo taken on Feb. 3, 2020 shows the newly-born thornback ray ‘Srecko’ (Happy) in an aquarium in Pula, Croatia. (Dusko Marusic/Pixsell via Xinhua)