Animals come in many shapes and sizes, and each one is special in its own way. For example,cheetah  are the fastest  land animals. They can run up to 60 miles per hour! In contrast, sloths are very slow and move at only about 0.15 miles per hour. This helps them hide from animals that want to eat them.

When we talk about size, blue whales are the largest animals on Earth. They can grow up to 100 feet long, making them much bigger than any other animal. On the other hand, hummingbirds are the smallest birds. Some are only 3 inches long! Their tiny size helps them hover in one place and drink nectar from flowers.

In the bird world, eagles are stronger than sparrows. Eagles use their strong claws to catch their food. While eagles fly high in the sky, penguins are heavier and cannot fly. But they are great swimmers, making them better at swimming than many other birds.