Geosciences' Shuhai Xiao finds fossils dating back 550 million years, among earliest known displays of animal mobility - vt.edu
- Geosciences' Shuhai Xiao finds fossils dating back 550 million years, among earliest known displays of animal mobility vt.edu
- Worm's 550M year-old 'death march' might be earliest known animal trail, study finds Fox News
- Early animal had 'complex behaviour' BBC News
- Behold Mortichnia, the Death Trail of an Ancient Worm The New York Times
- Ancient animal species: Fossils dating back 550 million years among first animal trails Phys.org
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