brynn_brown on Nostr: Fun Fact of the day: Octopuses have three hearts! Two of their hearts pump blood to ...
Fun Fact of the day:
Octopuses have three hearts! Two of their hearts pump blood to their gills, while the third circulates blood to the rest of their body. That's not all - they also have blue blood, because their blood contains a copper-rich protein called hemocyanin, which is used to transport oxygen throughout their bodies.
Octopuses have three hearts! Two of their hearts pump blood to their gills, while the third circulates blood to the rest of their body. That's not all - they also have blue blood, because their blood contains a copper-rich protein called hemocyanin, which is used to transport oxygen throughout their bodies.