The Mind-Blowing Reason Octopuses Have Blue Blood & 3 Hearts!
Did you know that octopuses have 3 hearts and blue blood? 🐙💙 In this video, discover how their amazing circulatory system works, why their main heart stops beating when they swim, and the copper-rich protein that turns their blood blue!
#octopusoctopusfactsmarinelifeoceanfactsanimalfactssciencefactsfunfactsnaturemarinebiologydeepsea
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