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Curated category

Vulnerable animals

  • LionFossils from the Middle Pleistocene era reveal a creature larger than today's lion. Paleontologists excavated bone fragments in caves across the United…
  • GiraffeThe fossil record reveals a lineage stretching back over 20 million years. An early ancestor named Canthumeryx lived in Libya between 17 and 15 million years…
  • HippopotamusFifty-five million years ago, a common ancestor split from other even-toed ungulates. This lineage eventually gave rise to both whales and hippos.