What comes to mind when you hear the word animal kingdom? Maybe a lion gracefully prowling the savannah, maybe a whale emerging from the blue waves of the ocean. Maybe a puppy curled up in your lap or an eagle circling over the mountain peaks. Maybe a fox or a frog, a baboon or a bear, a cute turtle or a scary tiger. Nature is full of amazing creatures and we are lucky enough to share a planet with them. There are more than a million known animal species in the world, from the tiniest mud puddles to the venerable lords of the jungle, and every one of them is fascinating. But some animals have something extra: they participate in groundbreaking discoveries, bring us important knowledge about the world, or even save human lives. Such are then indelibly written into history. This book was created to honor fifty of the most famous and memorable animals of all time and their remarkable lives. All fifty stories you will read in it really happened. Some will make you laugh, some will make you think, but all show how brave, intelligent and wonderful animals can be! Many of the heroes of our stories have done great things, and their merits are therefore worthy of our gratitude.