This is a new mechanism for sound production in birdsStudy: Humming bird chirps aren't chirps Jan 31, 2008
I've never done any kind of choreographed dance like this, and it's so much funJockstrip: The world as we know it. Oct 30, 2007
I've never done any kind of choreographed dance like this, and it's so much funIrvine joins worldwide 'Thriller' movement Oct 29, 2007
The sounds that hummingbird feathers can make are more varied than I expectedHummingbirds all 'a-flutter' in mating Sep 09, 2011
Christopher M. Clark (born 1960, in Sydney) is an Australian historian working in England. He was educated at Sydney Grammar School, the University of Sydney and the Freie Universität Berlin.
As he acknowledges in the foreword to "Iron Kingdom", living in West Berlin in what turned out to have been the last years of the divided Germany (1985–87) gave him an insight into German history and society. He received his Ph.D at the University of Cambridge. He is Professor in Modern European History at the University of Cambridge and a Fellow of St. Catharine's College.
Clark is a co-editor of the scholarly book series New Studies in European History from Cambridge University Press. He is the author of a study of Christian-Jewish relations in Prussia (The Politics of Conversion. Missionary Protestantism and the Jews in Prussia, 1728-1941; Oxford: Oxford University Press, 1995); a critical biography of the last German Kaiser (Kaiser Wilhelm II; Harlow: Longman, 2000, series "Profiles in Power"), and a best-selling history of Prussia (Iron Kingdom. The Rise and Downfall of Prussia, 1600-1947; London: Penguin, 2006). He is also the co-editor with Wolfram Kaiser of a transnational study of secular-clerical conflict in nineteenth-century Europe (Culture Wars. Catholic-Secular Conflict in Nineteenth-Century Europe, Cambridge: Cambridge University Press, 2003), and the author of numerous articles and essays.