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A new UBC study reveals that the brighter the orange on a male guppy, the more virile it is, solving a long-standing evolutionary puzzle about their flashy colours.
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Why are bald eagles such great gliders? It’s all in the wrist
Birds come in an astounding array of shapes and colours. But it’s their physical prowess—like a bald eagle’s incredible ability to soar—that captivates human imagination.
