Simple animal life may have existed in Earth's oceans 890 million years ago, according to new research.
원문출처 : https://www.cnn.com/2021/07/28/world/early-animal-sponge-fossil-scn/index.html
원문출처 : https://www.cnn.com/2021/07/28/world/early-animal-sponge-fossil-scn/index.html