Swan if a mate dies, the remaining swan will take up with another. The number of eggs in each clutch ranges from three to eight. The English word 'swan', akin to the German "Schwan", Dutch "zwaan" and Swedish "svan", is derived from Indo-European root "*swen" (to sound, to sing). Young swans are known as "swanlings" or as "cygnets"; the latter derives via Old French "cigne" or "cisne" (diminutive suffix -"et" "little") from the Latin word "", a variant form of "cycnus" "swan", itself from the Greek "kýknos", a word of the same meaning. An adult male is a "cob", from Middle
James A. Swan by William Stapp, seeking a definition of environmental education. Based on this work, Swan published the first article on what is “Environmental Education” in Phi Delta Kappan. In 1985, he produced the “Is The Earth A Living Organism?” symposium for the National Audubon Society. The featured speaker was James Lovelock, creator of the “Living Earth” theory. Swan is the author and co-author with William Stapp of the first college textbook on environmental education. In 2004, while working for ESPNOutdoors, he began writing about game wardens. This led him to be invited by California game wardens to produce a documentary called