Scientists have found the oldest sample of animal sperm, concealed in a 100 million-year-old piece of amber.
원문출처 : https://www.cnn.com/2020/09/17/world/sperm-oldest-amber-intl-scli-scn/index.html
원문출처 : https://www.cnn.com/2020/09/17/world/sperm-oldest-amber-intl-scli-scn/index.html