Older than we ever thought? The tiny fossil clue that could push animal origins back |
Microscopic squiggles found in 890-million-year-old Canadian reef rocks may represent the oldest animal body fossils, potentially pushing back the origin of animal life by 350 million years. Imagine for a second the first animals to appear on our planet. Most likely, your imagination conjures the image of the so-called Cambrian explosion, which was a mysterious…