Summary:

- The article discusses the discovery of the oldest known animal fossil, which is a sponge-like creature that lived over 890 million years ago.
- The fossil, named Caveasphaera, provides insights into the early evolution of multicellular life and the emergence of animals on Earth.
- The findings, published in the journal Nature, suggest that the origins of animal life may be much older than previously thought, challenging the current understanding of the timeline of life on our planet.