Join Nostr
2026-10-07 12:02:37 UTC

Compound Interest on Nostr: Today is #WorldOctopusDay 🐙 Did you know that octopuses have blue blood? This ...

Today is #WorldOctopusDay 🐙 Did you know that octopuses have blue blood? This graphic looks at what makes it blue, as well as other blood colours seen in different organisms: https://wp.me/p4aPLT-Fc