Octopus – Intelligence, Camouflage, and Sometimes Deadly
Octopuses are very intelligent creatures that can solve problems and use tools. They have three hearts and their blood is blue, which helps them survive in low-oxygen environments. Some, like the blue-ringed octopus, are incredibly dangerous due to their venom that can paralyze humans. Their skin can change color and texture quickly thanks to special cells, helping them hide from predators or communicate with each other.
