Evidence of a worm-like creature about the size of a grain of rice has been uncovered in South Australia, and researchers believe it is the oldest ancestor on the family tree that includes humans and most animals.
원문출처 : https://www.cnn.com/2020/03/23/world/animal-ancestor-ikaria-scn/index.html
원문출처 : https://www.cnn.com/2020/03/23/world/animal-ancestor-ikaria-scn/index.html