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  • 15 Nov 2004

    Toxin-releasing bacteria in ancient lake may have killed early animals

  • 12 Aug 1999

    The first eukaryotes, a lineage of life-forms that includes all plants and animals, appears to have arisen a billion years earlier than scientists had thought.

  • 2 Jul 1999

    The story of the first 4 billion years of Earth's history could make a lot more sense thanks to a new method for dating minerals in sedimentary rocks.

  • 2 Jun 1999

    Submarine volcanoes in the eastern Pacific were once sun-drenched islands that could have been home to iguanas and other creatures now found only on the Galápagos Islands.