What is blood made of?

Have you ever scraped your knee and wondered, what is blood actually made of? It is not just red water—it is a microscopic superhero team living inside you! Join Mira and Finn as they shrink down and race through your veins on a 60,000-mile biological superhighway! Did you know your blood vessels are long enough to wrap around the entire Earth twice? Discover the amazing secrets of your body, from millions of squishy red blood cells delivering oxygen, to shape-shifting white blood cells called macrophages that eat dangerous germs whole! Learn how sticky platelets weave superglue nets to plug leaks just like a submarine hatch. You will also find out about the Dutch scientist who first spotted these tiny cells in 1674, and even travel the animal kingdom to uncover bizarre creatures with bright blue and neon green blood! Get ready for a mind-blowing journey inside the human body that proves science is definitely not boring!