by David Allen Sibley
by G. Dunn, B. S. Everitt
by Noam Chomsky, David Barsamian, Arthur Naiman
by James G. Harris, Melinda Wolf Harris
by Megan Poore
by Steve Jones, Edward Lee Lamoureux
by National Audubon Society
by Scott A. Hatch, Lisa Zimmer Hatch
by Norman MacLeod, Norman MacLeod, Systematics Association Staff
by Dennis W. Woodland
by John Ruscio, Nick Haslam, Ayelet Meron Ruscio
by Jory Sherman