They have a very slow metabolism.
But despite doing everything slowly and having not changed much in two hundred million years,
tuatara have a faster rate of molecular mutation than any other known animal.”
“Like, they’re evolving faster?” “At a molecular level, yes. They change more rapidly than humans or lions or fruit flies.
Which raises all kinds of questions: Did all animals once mutate at this rate?
What happened to slow down molecular mutation? How does the animal itself change so little when its DNA is mutating so rapidly?”
“And do you know the answers?” He laughed. “Oh no no no. Far from it.
What I love about science is that as you learn, you don’t really get answers. You just get better questions.”
I heard a door open behind me. Davis. “Movie?” he asked.
I told Malik thanks for the tour, and he said, “Anytime. Perhaps next time you’ll be ready to pet her.”
I smiled. “I doubt it.” Davis and I didn’t hug or kiss or anything;
we just walked next to each other on the dirt path for a while until he said, “Noah got in trouble in school today.”
전체재생
다음페이지
문장검색