Chris and Martin Kratt explain how some creatures, such as the orangutan, have become endangered; while others are extinct, including the dodo and Steller's sea cow. The Kratts suggest how children can make a difference in the future for species survival. This multiformat book contains full-color photos from the wacky PBS wildlife adventure series that s both educational and fun! African wild dogs. Ayes-ayes. Tigers. Texas blind salamanders. What do all these creatures have in common? They re all creatures in crisis and they need help!