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  1. Life

    How these sea-loving mangroves ended up far from the coast

    On the Yucatán Peninsula, mangroves trapped nearly 200 kilometers from the ocean are part of a “relict ecosystem” that’s more than 100,000 years old.

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  2. Anthropology

    Lasers reveal construction inspired by ancient Mexican pyramids in Maya ruins

    Archaeologists have uncovered structures in Guatemala that are remarkably similar to La Ciudadela and its temple at the ancient city of Teotihuacan.

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  3. Animals

    Tuskless elephants became common as an evolutionary response to poachers

    After poachers tore through a Mozambican elephant population, tuskless females tripled in number as humans altered the species’s evolutionary trajectory.

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  4. Paleontology

    Some dinosaurs may have lived in herds as early as 193 million years ago

    A fossilized family gathering of long-necked Mussaurus may be the earliest evidence yet of herd behavior in dinosaurs.