The winners of the 2025 Science Without Borders art competition have been announced, focusing on marine keystone species that are vital for ocean health. This international contest attracted over 1,300 submissions from students aged 11-19 across 75 countries. Notable winners include Hyungjun Chin, who depicted a sea otter’s role in preserving kelp forests, and Gia Kim, who highlighted the importance of krill in Arctic ecosystems. The competition aims to educate participants about ocean conservation and the significance of certain species in maintaining marine biodiversity.