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Version devBuilt at: 2026-10-13 03:52:57 EDT

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@compoundchem.comOct 7, 2026, 12:48 PM

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: wp.me/p4aPLT-Fc

#ChemSky 🧪

Infographic on the chemistry of the colours of blood. Human blood is red due to haemoglobin, which is also red when deoxygenated - not blue! Spiders, crustaceans, and molluscs including octopuses and squid have blue blood due to haemocyanin, which contains copper instead of iron. When deoxygenated, haemocyanin is colourless. Some segmented worms, some leeches and some marines worms have green blood due to chlorocruorin, which is light green when deoxygenated. Marine worms including peanut worms, penis worms and brachiopods have purple blood due to haemerythrin, which is colourless when deoxygenated.
@proseandpassion.mastodon.social.ap.brid.gyOct 7, 2026, 12:21 PM

#WorldOctopusDay is #tomorrow, actually, on the eighth, which kind of makes sense ... https://www.worldanimalprotection.org/our-campaigns/sentience/animal-awareness-days/world-octopus-day/

@konamina.bsky.socialOct 6, 2026, 8:05 PM

How many likes can Darwin get to celebrate this week's #WorldOctopusDay? 🐙

Stay tuned for the high five video!

Darwin's Paradox! is on sale now on select platforms.
Visit the official store pages for more details: www.konami.com/games/darwin...

@thedivis.bsky.socialOct 1, 2026, 1:46 PM

🐙World Octopus Day🐙

Let's celebrate the existence of these magnificent creatures!
There will be a very educational quiz, Octodad gameplay and even my companion Mr. Tentacle will join us!

📅Thursday 8th October
🕕6PM UTC+3
🔗: www.twitch.tv/thedivis

#WorldOctopusDay