Brains, tools, innovation and biogeography in crows and ravens

by Jønsson Knud A, Fabre Pierre-Henri, Irestedt Martin
Published 2012-05-01

An unexpectedly long history of sexual selection in birds-of-paradise

by Christidis Les, Fjeldså Jon, Jønsson Knud A, Irestedt Martin, Ericson Per GP
Published 2009-09-01