Search Results for: grassland

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400 results
  1. illustration of a clovis hunter aiming a spear at a mammoth
    Archaeology

    Clovis hunters’ reputation as mammoth killers takes a hit

    Early Americans’ stone points were best suited to butchering the huge beasts’ carcasses, scientists contend.

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  2. a jaguar swimming in water
    Animals

    Huge numbers of fish-eating jaguars prowl Brazil’s wetlands

    Jaguars in the northern Pantanal ecosystem primarily feed on fish and caiman, living at densities previously unknown for the species.

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  3. photo of 3,000-year-old pants taken from above
    Archaeology

    The world’s oldest pants stitched together cultures from across Asia

    A re-creation of a 3,000-year-old horseman’s trousers helped scientists unravel its complex origins.

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  4. African elephant with trunk in air
    Archaeology

    Ivory from a 16th century shipwreck reveals new details about African elephants

    Ivory from the sunken Portuguese trading ship Bom Jesus contains clues about elephant herds that once roamed Africa, and the people who hunted them.

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  5. Ancient human footprints from the Arabian Peninsula
    Anthropology

    Seven footprints may be the oldest evidence of humans on the Arabian Peninsula

    In what’s now desert, people and other animals stopped to drink at a lake more than 100,000 years ago, a new study suggests.

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  6. ostrich eggshell beads
    Anthropology

    An ancient social safety net in Africa was built on beads

    A Stone Age network of communities across southern Africans was established using ostrich shell beads by around 33,000 years ago.

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  7. ancient North American and South American animals
    Paleontology

    Why South America’s ancient mammals may have lost out to northern counterparts

    When North and South America joined millions of years ago, mammals from the north fared better in the meetup. Extinctions in the south may be why.

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  8. a field with rows of pine trees alternating with rows of grape vines
    Earth

    Mixing trees and crops can help both farmers and the climate

    Agriculture is a major driver of climate change and biodiversity loss. But integrating trees into farming practices can boost food production, store carbon and save species.

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  9. skulls and other fossils in drawers
    Humans

    Fossils and ancient DNA paint a vibrant picture of human origins

    Paleoanthropologists have sketched a rough timeline of how human evolution played out, centering the early action in Africa.

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  10. a view to the tops of several tall, skinny trees with light green leaves
    Environment

    Why planting tons of trees isn’t enough to solve climate change

    Massive projects need much more planning and follow-through to succeed – and other tree protections need to happen too.

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  11. aspen trees burning in a prescribed burn at Fishlake National Forest
    Ecosystems

    Wildfires launch microbes into the air. How big of a health risk is that?

    How does wildfire smoke move bacteria and fungi — and what harm might they do to people when they get there?

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  12. Skulls in boxes

    The human story

    A century ago, it wasn’t obvious where humans got their start. But decades of fossil discoveries, reinforced by genetic studies, have pointed to Africa as our homeland.

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