Uploaded July 2025 | Updated September 2026, 1 day ago
Octopuses have three hearts and nine brains.
Two hearts pump blood to the gills, one to the rest of the body—and each arm has its own mini-brain to help it move and react independently.
Octopuses have three hearts and nine brains.
Two hearts pump blood to the gills, one to the rest of the body—and each arm has its own mini-brain to help it move and react independently.

