ELI5: Explain Like I'm 5

Burgess Shale type preservation

Burgess shale type preservation is a way of keeping very old, ancient animals and plants together in rocks that have been buried deep underground for a very long time. Imagine that you're playing with your toys at home and you accidentally spill a box of crayons on the floor. Instead of cleaning them up right away, you forget about them and leave them there for months. When you come back, you'll find that the crayons have melted a little and have made colorful streaks on the floor that won't go away when you wipe them up with a wet cloth.

Now, think about ancient animals and plants that lived millions of years ago. They died and their remains ended up being buried deep underground. Over time, the layers of dirt and rock piled up on top of them, creating a lot of pressure and heat that changed their shape and texture. But in some special cases, the conditions underground were just right to keep the original structure of these dead animals and plants intact. This is what we call "Burgess shale type preservation."

It's like having a time capsule that preserves a snapshot of ancient life on Earth, and scientists can study these fossils to learn more about what kind of creatures lived here long before humans. It's like looking through old photo albums and seeing pictures of your grandparents when they were young. Burgess shale type preservation helps us understand the history of our planet and the evolution of life.