Justin Herbert could’ve been a top pick in this year’s NFL Draft and made millions of dollars. But the quarterback’s science nerdiness kept him in school.

The Oregon Heisman hopeful is close to graduating with a 4.01 GPA in biology and used to raise quail, frogs, butterflies, parakeets and hermit crabs in his grandparents’ backyard, according to Yahoo! Sports.

Herbert’s grandfather taught biology at his high school, Sheldon High in Eugene, for 34 years, and Justin and his older brother Mitchell took to science.

“Some of the most competitive things I’ve seen with [Mitchell and Justin] was when they were chasing frogs or butterflies or snakes,” Roger Herbert told the website. “They were competitive in nature, and it was pretty intense when they were out hunting for things.”

Justin, a biology TA, also tried to teach ducks to fly when he was younger. He’d be applying to medical schools if he didn’t have a promising NFL future and knows it’s unlikely he’ll be able to become a doctor after his career is over. But he does want to win the William V. Campbell Trophy, referred to as the academic Heisman. He’s not sure if he wants it more than the football Heisman, though.

“I think it’d be up there,” he told Yahoo. “I don’t know if I could pick one or the other.”