- Geologist may have found 890-million-year-old sea sponges in ancient reefs of Canada's Mackenzie Mountains ABC News
- Is this the world's oldest animal fossil? nature video
- Oldest animal life on Earth possibly discovered. And it’s related to your bath sponge. Livescience.com
- Sponge fossils suggest animals already existed 890 million years ago New Scientist News
- Do these fossilized structures belong to Earth's first animals? Science Magazine
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