For their first 100 million years on planet Earth, our mammal ancestors relied on the cover of darkness to escape their dinosaur predators and competitors. Only after the meteor-induced mass extinction of dinosaurs 66 million years ago could these nocturnal mammals explore the many wondrous opportunities available in the light of day.
원문출처 : https://www.cnn.com/2018/06/14/asia/animal-wildlife-turns-nocturnal-intl/index.html
원문출처 : https://www.cnn.com/2018/06/14/asia/animal-wildlife-turns-nocturnal-intl/index.html