An article published in the journal “Communications Biology” reports a study on microfossils with an age of up to 570 million years discovered in present-day Greenland. A team of researchers led by paleontologist Sebastian Willman of the University of Uppsala, Sweden, examined these microfossils, which have characteristics that suggest they may be animal eggs and embryos. They show similarities with other microfossils discovered in the Doushantuo Formation, in China, with an age close to 600 million years. This means that they were organisms that in such an ancient era were widespread all over the world and could be the remains of the first animals.