тАЬOne of the most interesting discoveries IтАЩve seen in animal sociobiology in years.тАЭ тАФE.O. Wilson
Why do ravens, generally understood to be solitary creatures, share food between each other during winter? On the surface, there didnтАЩt appear to be any biological or evolutionary imperative behind the ravenтАЩs willingness to share. The more Bernd Heinrich observed their habits, the more odd the birdтАЩs behavior became. What started as mere curiosity turned into an impassioned research project, and Ravens In Winter, the first research of its kind, explores the fascinating biological puzzle of the ravenтАЩs rather unconventional social habits.
тАЬBernd Heinrich is no ordinary biologist. HeтАЩs the sort who combines formidable scientific rigor with a sense of irony and an unslaked, boyish enthusiasm for his subject, and who even at his current professorial age seems to do a lot of tree climbing in the line of research.тАЭ тАФDavid Quammen, The New York Times