Did You Know? Octopuses Have Blue Blood!
Octopus blood looks blue because it uses copper-rich hemocyanin to carry oxygen.
Blue Blood Under the Sea! 🐙
Octopuses use a copper-based protein called hemocyanin to move oxygen through their bodies. That can make their blood look blue.
Color & Discover 🎨
Color an octopus in deep-sea blues and purples. Ask: What other ocean animal colors surprise you?
