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Listen to the bugling call of an elk.

Listen to the bugling call of an elk.

The bugling call of an elk.
NPS/Jay Elhard
  • Encyclopædia Britannica, Inc.
    This myth is based on a web of lies.
    Do We Really Swallow Spiders in Our Sleep?
    A man sleeps with his mouth open on a bed, while a large spider sits on the pillow near his hand.
  • Encyclopædia Britannica, Inc.
    We asked NASA.
    What Happens at the International Space Station?
    The International Space Station.
  • Encyclopædia Britannica, Inc.
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    How to Pronounce Caatinga
    White text on a textured blue background reading Caatinga.
  • Contunico © ZDF Studios GmbH, Mainz
    Learn about sleep apnea and its health effects through a study conducted at the Leipzig's University Hospital.
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    Why sleep is so important
  • Encyclopædia Britannica, Inc.
    Humpback whales (Megaptera novaeangliae) recorded at sea.
    Listen to a humpback whale pod communicate via underwater “songs”
    Listen to a humpback whale pod communicate via underwater “songs”
  • Contunico © ZDF Studios GmbH, Mainz
    Learn about the health benefits of laughter and how it can be contagious.
    Explore the health benefits of laughter and how contagious it can be
    Explore the health benefits of laughter and how contagious it can be
  • Contunico © ZDF Studios GmbH, Mainz
    Two red deer (Cervus elaphus) battling for dominance during the rutting season.
    Red deer rivalry during mating season
    Red deer rivalry during mating season
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News •

Colorado wildlife overpass cut vehicle-animal collisions by 91%, report finds • Oct. 19, 2026, 5:39 PM ET (The Guardian)