What are fossils?

Fossils are trapped memories from animals and plants that lived a long time ago.

Imagine you have a favorite toy that you put in your backpack every day. One day, you forget about it, and it stays inside for years, maybe even decades. Over time, the backpack might change a little, but your toy is still there, just like it was when you first put it in.

That's kind of what happens with fossils! Fossils are like those forgotten toys, they're remains of animals or plants that were buried under dirt or rocks. Over time, the soft parts of these creatures might disappear, but sometimes their bones, shells, or even footprints stay behind. These trapped memories help scientists learn about what life was like long ago.

When a creature dies and gets covered in mud or sand, it starts to change, the water and dirt take away the soft parts, leaving behind hard parts like bones or teeth. After many years, those hard parts can turn into rock, creating a fossil that looks just like the original.

Sometimes, even whole bodies can become fossils if they are buried in special kinds of mud that keep them safe from decay, it's like being wrapped up in a cozy blanket for thousands of years!