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  1. Animals

    You might be reading your dog’s moods wrong

    A dog's physical cues often take a back seat to environmental ones, skewing humans' perceptions, a small study suggests.

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  2. Math puzzle: The Lesser Fool

    Solve the math puzzle from our April 2025 issue. In honor of April Fools’ Day, we offer the puzzling case of the Lesser Fool.

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  3. Animals

    Is that shark ticking? In a first, a shark is recorded making noise

    The ocean can be a symphony of fish grunts, hums and growls. Now add tooth-clacking sharks to the score.

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  4. Plants

    A nearly century-old dead date palm tree helped solve an ancestry mystery

    The iconic Cape Verde date palm came from commercial trees gone feral and could provide genetic variety to boost the resilience of its tamer relatives.