Support Provided ByLearn More
Body + BrainBody & Brain

Len Zon

The Secret Life of Scientists and EngineersThe Secret Life of Scientists and Engineers

Receive emails about upcoming NOVA programs and related content, as well as featured reporting about current events through a science lens.

“We have red fish. We have green fish. We have blue fish.”


Support Provided ByLearn More

Len Zon is a cancer researcher who uses zebrafish to learn how to treat cancer in humans.


Len plays the shofar, a ram’s horn that is often used in synagogue on the Jewish high holidays.

Fishing for Science

Len Zon goes all Dr. Seuss and studies zebrafish to find treatments for cancer.

The Longest Note

Len Zon brings people happiness by blowing into a ram's horn.

30 Second Science with Len Zon

We give Len Zon 30 seconds to describe his science and he uses the phrase "completely transparent."

10 Questions for Len Zon

We ask Len Zon 10 questions and he tells us he's got 150,000 fish.

Blog Posts

Shofar So Good
Ask Len Your Questions
Lessons From Len: The Monette Trumpet
Lighting Up Research
They Go Together
Getting The Job Done
Secret Life Snap Shot #13 – #14


About Len Zon

Len is a cancer researcher at Harvard Medical School and a practicing oncologist at Children’s Hospital in Boston.

Original funding for "The Secret Life of Scientists and Engineers" was provided by the Alfred P. Sloan Foundation.