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Microscope image of a tardigrade moving among elongated green algal cells on a pale background.

Tardigrade in Motion

A light micrograph is used to capture footage of the tiny tardigrade, or water bear.
© Ruben Duro/Science Source
  • Encyclopædia Britannica, Inc.
    These snakes mean business.
    Why Spitting Cobras Don't Technically Spit
    The video thumbnail image shows a spitting cobra shooting venom from its teeth.
  • Encyclopædia Britannica, Inc.
    The monster flower and the titan arum have been said to smell like rotting flesh.
    Media Editor: Lauren Sims
    Why Do the World's Largest Flowers Stink?
    Large red Rafflesia flower with spotted petals is shown close up, with lines representing foul odor emanating from the flower. Bold text reads the phrase: Smells like death.
  • Encyclopædia Britannica, Inc.
    A hurricane is essentially a large tropical storm. 
    What Is a Hurricane?
    Satellite image of a large hurricane with a defined eye over the Gulf of Mexico, approaching the U.S. Gulf Coast.
  • © Open University (A Britannica Publishing Partner)
    An overview of nitrogen fixation.
    Learn how nitrogen-fixing bacteria fix nitrogen, also how it benefits the farmers in agriculture
    Learn how nitrogen-fixing bacteria fix nitrogen, also how it benefits the farmers in agriculture
  • © MinuteEarth (A Britannica Publishing Partner)
    A survey of the largest known single living organisms on Earth, which includes representatives from the animal, plant, and fungal kingdoms.
    See a survey comparing the largest known single living organisms on Earth: from the animal, plant, and fungal kingdoms
    See a survey comparing the largest known single living organisms on Earth: from the animal, plant, and fungal kingdoms
  • Encyclopædia Britannica, Inc.
    A jellyfish contracting its body.
    Study a jellyfish's muscular contractions and learn how the carnivore uses its tentacles to catch prey
    Study a jellyfish's muscular contractions and learn how the carnivore uses its tentacles to catch prey
  • Encyclopædia Britannica, Inc.
    From teeny-tiny ants to 200-ton whales, all members of the animal kingdom are composed of cells.
    The Major Parts of an Animal Cell
    The video thumbnail image shows an illustration of an animal cell next to a photo of a whale swimming in the oean.
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