Your brain burns about 20 watts of energy, roughly the same as a small bulb, yet it runs 86 billion neurons nonstop. It makes up just 2% of your body weight but uses 20% of your energy, quietly powering every thought and movement.

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A baby blue whale drinks 100 gallons of milk and gains 200 pounds daily — the fastest growth rate of any mammal. By weaning, it weighs over 25 tons, powered entirely by its mother’s milk.

Your ears grow about 0.2 millimeters per year as cartilage softens and stretches under gravity. Over a lifetime, that adds up to about a centimeter, which is why older adults often have noticeably longer ears and broader lobes.

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Your tongue has about 10,000 taste buds that wear out and regrow every 10 to 14 days. This constant renewal keeps your sense of taste fresh, which is why burning your tongue only affects flavor for a week or two.

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A sunflower doesn’t just follow the sun. It sends tiny electrical signals through its stem to sense light, stress, and touch.. a living network powered by biology.

Your body creates about 25 million new cells every second. Most are recycled and replaced within years, while some, like neurons, last for life. You are constantly being rebuilt, molecule by molecule, without even realizing it.