Picture of thousands of galaxies
Gazing at galaxy clusters like Abell 2218, it’s to imagine how we fit into the cosmos. Evolution can with that, says Bill Nye.

Photograph by NASA, ESA, and Johan Richard (Caltech, USA)

Darwin’s theory explains so much of the world, from bumblebees to human origins, says the Science Guy.

Excerpt from

By Jane J. Lee


With a jaunty bow tie and boyish enthusiasm, Bill Nye the Science Guy has decades decoding scientific topics, from germs to volcanoes, for television audiences. Last February, the former engineer defended the theory of evolution in a televised debate with young-Earth creationist Ken Ham, a vocal of a group that believes the Earth is only 6,000 years old. Nye’s to engage Ham kicked up plenty of criticism from scientists and creationists alike.


The experience prompted the celebrity science educator to write a “primer” on the theory of evolution called Undeniable: Evolution and the Science of Creation. In his book, Nye delights in how this fundamental discovery helps to unlock the mysteries of everything from bumblebees to human origins to our place in the universe.

Who do you hope will read this book?

Grown-ups who have an in the world around them, people of age who have an in science, people who still want to know how the world works.

This is the big concern of mine with respect to the organization Answers in Genesis and Ken Ham and all those guys: their relentless, built-in attempts to indoctrinate a generation of science students on a worldview that is obviously wrong.

I worry about these kids—they’re part of my society. We can’t raise a generation of students who don’t understand the fundamental idea in all of life science, any more than you want to raise a generation of kids who don’t understand chemistry or physics or arithmetic.

How and when did you first encounter creationism?

About 20 years ago. I was a member of the Northwest Skeptics, which is the Seattle-based skeptics organization. We met people who insisted that the Earth was 6,000 years old. The inanity took my breath away. When you understand anything about astronomy or have just a rudimentary understanding of radioactivity, the Earth is patently not 6,000 years old. It’s silly.

It’s been said that a good of convincing people of something is to appeal to their emotions. What do you think?

That’s my ! In the book, I purposely spend a lot of time in the first person. The reason is, we find stories compelling. Stories are how we remember things, how we organize things.

By a story in the first person, it’s hard to dismiss. If I say, “I remember the time I met Ivan the gorilla,” it’s really difficult for the listener or reader to go, “No, you don’t!”

When you say, “I feel,” it’s really hard for the reader to say, “No, you don’t.” Yes, I do. I did a lot of that in the book…

Picture of a sweat bee pollinating a deadly nightshade flower

A fascination with bees and flight drew a young Bill Nye into the world of science and evolution.

Photograph by Mark W Moffett, National Geographic


Picture of the Earth seen from the International Space Station

One of the most fundamental ideas in explaining life on Earth is the theory of evolution, says Nye.

Photograph by NASA Earth Observatory