Did you know that tardigrades, also known as water bears, can survive extreme conditions like boiling water, freezing temperatures, and even the vacuum of space? These microscopic creatures are some of the toughest known life forms on Earth. What's the most fascinating organism you've heard of?

Did you know that octopuses have three hearts and blue blood? Two hearts pump blood to the gills, while the third pumps it to the rest of the body. Their blood contains a copper-based molecule called hemocyanin, which is more efficient than hemoglobin in cold, low-oxygen environments. 🐙💙

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