If confirmed, the findings indicate that animals appeared on Earth millions of years earlier than previously believed.
The 890-million-year-old sponge fossil may be the oldest animal
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Oldest animal life on Earth possibly discovered. And it's related to
Newly Found Sponge-Like Structures Could Push Animal Evolution
890-Million-Year-Old Fossils Are Sponges, Oldest Animals: Study
A scientist unearths potential evidence for the earliest animal life
890-Million-Year-Old Fossils Are Sponges, Oldest Animals: Study
Is this the world's oldest animal fossil?
Living Fossils Disprove Evolution – CEH
Sponges identified as oldest animal life
Suzi's Sponge Garden: Fossil & Living Sea Sponges Porifera
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