Ecosystems

  1. insect egg shapes
    Ecosystems

    Why some insect eggs are spherical while others look like hot dogs

    Analyzing a new database of insect eggs’ sizes and shapes suggests that where eggs are laid helps explain some of their diversity of forms.

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  2. tree finch
    Animals

    Parasites ruin some finches’ songs by chewing through the birds’ beaks

    Parasitic fly larvae damage the beaks of Galápagos finches, changing their mating songs and possibly causing females to pick males of a different species.

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  3. fishing boats
    Oceans

    The world’s fisheries are incredibly intertwined, thanks to baby fish

    A computer simulation reveals how one nation's management of its fish spawning grounds could significantly help or hurt another country's catch.

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  4. artist's rendering of Arctic hyenas
    Paleontology

    Hyenas roamed the Arctic during the last ice age

    Two teeth confirm the idea that hyenas crossed the Bering land bridge into North America, a study finds.

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  5. Odaw River
    Ecosystems

    Many of the world’s rivers are flush with dangerous levels of antibiotics

    Antibiotic pollution can fuel drug resistance in microbes. A global survey of rivers finds unsafe levels of antibiotics in 16 percent of sites.

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  6. Sinclair Lake
    Environment

    Some Canadian lakes still store DDT in their mud

    Yesterday’s DDT pollution crisis is still today’s problem in some of Canada’s lakes.

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  7. fungi network
    Life

    Some fungi trade phosphorus with plants like savvy stockbrokers

    New views show how fungi shift their stores of phosphorus toward more favorable markets where the nutrient is scarce.

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  8. calcite crystals
    Chemistry

    Carbon plays a starring role in the new book ‘Symphony in C’

    In Symphony in C, geophysicist Robert Hazen explores carbon’s ancient origins, its role in life and its importance in the modern world.

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  9. Rhynchomys rats
    Animals

    Worms lure two new species of hopping rats out of obscurity

    In the Philippines, scientists have identified two new species of shrew-rat, an animal whose limited habitat plays host to remarkable biodiversity.

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  10. compostable food containers
    Environment

    Chemicals in biodegradable food containers can leach into compost

    PFAS compounds from compostable food containers could end being absorbed by plants and later eaten by people, though the health effects are unclear.

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  11. Pteris vittata ferns
    Environment

    How one fern hoards toxic arsenic in its fronds and doesn’t die

    To survive high levels of arsenic, a fern sequesters the heavy metal in its shoots with the help of three proteins.

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  12. Great Barrier Reef blenny
    Animals

    Shy fish no bigger than a pinkie provide much of the food in coral reefs

    More than half of the fish flesh that predators in coral reefs eat comes from tiny, hard-to-spot species.

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