William Keeton

William Tinsley Keeton (February 3, 1933 – August 17, 1980) was an American zoologist known internationally for his work on animal behavior, especially bird migration, and for his work on millipede taxonomy. He was a well-liked professor of biology at Cornell University in Ithaca, New York and auth…






The causes of fall foliage are complex and actually not entirely understood, drought is only one of several factors, the others being photoperiod and the contrast between daytime and nighttime temperatures in autumn. All of this just goes to show how fascinating our forest ecosystems are !

© Quotes.net