Watch a velvet worm, an ancient terrestrial invertebrate, crawl across leaf litter
Learn about the velvet worm while watching one belonging to the genus Peripatus creep over leaf litter.
Encyclopædia Britannica, Inc.
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© 2025 Thomas ReutersTwo time-lapse videos show Suicide Basin, a glacial-dammed lake, rising in Alaska, July–August 2025. The waters eventually emptied into Mendenhall Lake and Mendenhall River.
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Encyclopædia Britannica, Inc.Are you “red-y” to find out?
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Encyclopædia Britannica, Inc.Spiders are the planet's top predators.
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Encyclopædia Britannica, Inc.Learn about the difference between prokaryotes and eukaryotes.
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© 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.
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Contunico © ZDF Studios GmbH, MainzA dominant female meerkat expelling a subordinate from the pack.
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Encyclopædia Britannica, Inc.A jellyfish contracting its body.
