Japanese tree frog in a pink morning glory Apr. 1, 2026

Today, let"s hop into the world of one of nature"s smallest yet most hardworking ambassadors. Frogs may not wear crowns—unless you believe in Frog Kings—but they do rule quietly behind the scenes. By keeping insect populations in check, they help ecosystems stay balanced. Even more impressive? Their sensitive skin also means they react quickly to changes in their surroundings, which is why scientists often look at frogs to understand the health of wetlands and forests. Talk about living barometers.

© Tetsuya Tanooka/Getty Images

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Today in History

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