Great essay. I was totally unfamiliar with the idea that ~50% of modern animal phyla appeared at the same time.
It’s a fascinating piece of Earth history for sure! If you can figure it out, let me know.
Great essay. I was totally unfamiliar with the idea that ~50% of modern animal phyla appeared at the same time.
It’s a fascinating piece of Earth history for sure! If you can figure it out, let me know.