A biomineralized light-guiding structure in the porous calcitic skeleton of the sea star Protoreaster nodosus - Liuni Chen; Hannah Feldstein; Zian Jia; Chenhao Hu; Hongshun Chen; Yang Geng; Emily M. Peterman; Carla Slebodnick; Daniel I. Speiser; Daniel Baum; Mathias Kolle; Ling Li (Proceedings of the National Academy of Sciences, 2026)