Clay often exists in fields covered with some water.

VOA: special.2009.09.14

"People ask me,' How long did it take you to write that book? ' The answer is,'Sixty-eight years.'" The book consists of 600 essays by Milner - some done in consultation with other experts in the many fields shaped by Darwin's thinking ." .

VOA: standard.2009.11.25

She remembers that she did. "I think like many of the children in our world, I got interested in science just from having a butterfly net and from having a few strainers and some boots and going down to the streams and creeks and being out in the fields."

VOA: standard.2010.03.29