We all know that whales, giraffes and elephants are large animals. There’s even a special term in zoology for giant animals: megafauna. This term includes not only living animals but extinct ones, too, such as mammoths and dinosaurs.
Compared with humans, many animals are or were really big. While an average human is about 5-6 feet and the giraffe about 15-17 feet tall, the brachiosaurus was about 50 feet tall and 85 feet long from snout to tail.
This infographic shows the height and (when appropriate) the length of some living and some extinct species. It will help your students imagine how large these animals are with both its illustrations and numeric data.