This is the incredible moment a tour guide in Yucatan, Mexico on August 24 demonstrates an incredible phenomenon found at the Kukulcán Temple. He claps, and when the sound bounces off the steps, it ...
Not all birds sing, but those that do — some several thousand species — do it a lot. All over the world, as soon as light filters over the horizon, songbirds launch their serenades. They sing to ...
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