Changing environment Quote by Arthur C. Clarke

The dinosaurs became extinct because they didn't have a space program. And if we become extinct because we don't have a space program, it'll…

— Larry Niven

The dinosaurs became extinct because they didn't have a space program.

— Larry Niven

We know little of the consequences of the geoengineering process, such as spraying particles into the atmosphere that shade the planet from the sun's…

— Graciela Chichilnisky

Dinosaurs may be extinct from the face of the planet, but they are alive and well in our imaginations.

— Steve Miller

Dinosaurs are extinct today because they lacked opposable thumbs and the brainpower to build a space program.

— Neil deGrasse Tyson

Why dinosaurs are extinct.

— Alla

Eventually, I believe, everything evens out. Long ago an asteroid hit our planet and killed our dinosaurs. But in the future, maybe we'll go…

— Jack Handey

We live in a time where we have more extinction happening on our planet than since the dinosaurs were wiped out 50 million years ago.

— Jeff Corwin

Theres no environment I can think of that would have remained constant enough to preserve dinosaur DNA.

— Hendrik Poinar

“All the dinosaurs have gone off into the stars, leaving the world to mammals.”

— Neil Gaiman

The public image of dinosaurs is tainted by extinction. It's hard to accept dinosaurs as a success when they are all dead. But the…

— Robert T. Bakker

There's no environment I can think of that would have remained constant enough to preserve dinosaur DNA.

— Hendrik Poinar