Life
A whole new world of tiny beings challenges fundamental ideas of life
The surprising discovery of entities smaller than viruses raises profound questions about what life is and how it got started
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The surprising discovery of entities smaller than viruses raises profound questions about what life is and how it got started
Arthropods belong to an evolutionary branch – the ecdysozoa – that contains about half of all animal species, and the earliest fossil evidence of the group now dates back 550 million years