Structural studies of the robust material called sporopollenin reveal how it made plants hardy enough to reproduce on dry land.
About the author
James Dinneen is a science journalist from Colorado based in New York. He reports on the environment for New Scientist, and has also written for other publications, including National Geographic, Undark, Yale Environment 360 and The Boston Globe. You can find more of his work through his website, jamesdinneen.wordpress.com.