1. What is the fastest animal in the world? How fast can a cheetah run?
2. What is the heaviest animal in the world? How much does a whale weight?
3. What is the longest animal in the world? How long is this bootlace worm?
4. What is the tallest animal in the world? How tall is a giraffe?
5. What is the smallest bird in the world? How small is a colibri?