"Ursus, incidentally, is Latin for "bear," as is arctos in Greek; so Ursus arctos therefore means, rather emphatically "bear bear." The Arctic was named after the bear, rather than the other way around -- which, we suppose, makes the Antarctic the antibear (our apologies -- we couldn't resist)."
The only thing better than an academic book written in comfortably readable style is an academic book written in a comfortably readable style with a sense of humour. It's something I know I can expect from Donald Prothero (author of the other book I received today) ... bliss to discover three others who favour doing this in one go. :-)