National Geographic Kids has some fantastic informational books about animals, geography, and science. The Cheetahs edition gives you all the fun facts and interesting antics of cheetahs like where the live, what they eat, and how they protect their babies. It is essentially the National Geographic television channel in a book for children!
These books would be great to use as a reward in science class for students who get their work done or would even be great to base a lesson around and use for read aloud. They are packed with lots of good information and can be found on many different animals and topics. They are educational but easy for kids to read and have beautiful wildlife photos to accompany all the facts. I remember reading some form of these as a kid in school and it was always a fun treat to pick out what animal I liked best.