Weird Frogs by Chris Earley

From chapters.ca:
A sneak peek into the remarkable world of the tail-less amphibians. Some frogs blend into the green of their ponds, and live an unremarkable existence. But some are strange looking, having adapted to a special environment. This colourful and informative book reveals a rare and close-up look at the odd beauty of some of the strangest of these creatures largely hidden from our view.