Scientists found pink is the world's colour. They looked at 1.1-billion--old rocks. They made powder from and found a bright pink . A experimented on the . She said the pink colour came from animals in of long ago. The oceans are not here .
The was when the rocks turned pink. She thought would be black. She explained important this is. She said: "Imagine you could find [an old] skin that has its colour - green or blue. That is the type of that we've made."