2: Which one's heavier: a hippo or a lion?
The hippo (1500 kg) is heavier than the lion (190 kg)
3: Which one's faster: the zebra or the ostrich?
The ostrich (70 km/h) is fasther than the zebra (65 km/h)
4: Which one's taller: the giraffe or the elephant?
The giraffe (6 m) is taller than the elephant (3 m)
5: What's the slowest animal in the world?
The sloth is the slowest animal in the world
1: What's the biggest animal in the world?
The blue whale is the biggest animal in the world
