Mary K. Miller is a freelance science writer fro San Jose. California. She is also a science and Web-cast producer at the Exploratorium in San Francisco, a job that has taken her to Antarctica, to the Galapagos, and inside Cold Spring Harbor Laboratory, on Long Island, New York. She has a degree in biology. Her story on endangered Hawaiian forest birds appeared in March 2004. You can follow some of her adventures on the Exploratorium Web site (www.exploratorium.edu/origins).