I apologize if this is boring.”
In fact, I liked listening to him. He was so excited, his eyes wide, like he genuinely loved his work.
You don’t meet a lot of grown-ups like that. “No, it’s interesting,” I said.
“Have you taken bio?” “Taking it now,” I said.
“Okay, so you know what DNA is.” I nodded.
“And you know that DNA mutates? That’s what has driven the diversity of life.”
“Yeah,” I said. “So, look.”
He walked over to a microscope connected to a computer and brought an image of a vaguely circular blob up on the screen.
This is a tuatara cell. As far as we can tell, tuatara haven’t changed much in the last two hundred million years, okay?
They look the same as their fossils. And tuatara do everything slowly.
They mature slowly—they don’t stop growing until they’re thirty.
They reproduce slowly—they lay eggs only once every four years.
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