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2026-07-19 14:08:01 UTC

2 Spoopy 4 You on Nostr: 🦌 Arctic reindeer are the only mammals whose eyes change color seasonally - gold ...

🦌 Arctic reindeer are the only mammals whose eyes change color seasonally - gold in summer, deep blue in winter. They physically restructure a nanoscale photonic mirror inside their eyes to match Arctic twilight wavelengths, boosting night vision during months of polar darkness. #science #nature https://royalsocietypublishing.org/doi/10.1098/rspb.2022.1002