What is an octopus?

Have you ever wondered what it would be like to have three beating hearts, bright blue blood, and a brain that spreads into your arms? Meet the octopus, one of the wildest and smartest creatures in the entire ocean! In this episode of Science's Not Boring, Mira and Finn dive deep underwater to uncover the incredible secrets of these squishy, ancient animals. Did you know octopuses have been swimming in our oceans since the time of the Jurassic dinosaurs? It is absolutely true! Discover how they use copper-rich blue blood to survive in freezing deep waters, and how their eight arms have minds of their own—literally! Each arm can taste, touch, and think independently using millions of brain cells. We will also reveal how these deep-sea geniuses can change color in milliseconds like a real-life invisibility cloak, unscrew glass jars from the inside, and even use coconut shells as underwater armor! Join the adventure, learn some mind-blowing marine biology facts, and take our fun trivia quiz at the end to see if your brain is as sharp as a giant Pacific octopus!