In 1869, John Wesley Powell led a small party down the Green and Colorado Rivers in a bold attempt to explore the Grand Canyon for the first time. After their monumental expedition, they told of raging rapids, constant danger, and breathtaking...
CW/CT Webinar series, Presented by Dr. Michelle Baker. August 20, 2009
Do I need a comma in this sentence? Should this letter be capitalized? What is the difference between that and which? These questions can plague anyone revising a...
Biological control; Biologists (USFWS); Diseases; Environmental education; Farms and farming; Podcast; Public Lecture;
In 1941 the Food and Drug Administration approved the use of diethylstilbestrol (DES), the first synthetic chemical to be marketed as an estrogen and one of the first to be identified as a hormone disruptor—a chemical that mimics hormones. Its...
Angus Bernard oral history interview as conducted by Dorothe Norton. Angus Bernard worked for the Soil Conservation Service and later at the Wetland Management District in Benson, Minnesota.
