Orcas Use Seaweed Tools for Massages

Scientists found that orcas, which are actually the largest type of dolphin, use seaweed to give each other massages.

They pick up the seaweed and gently move it around on their friends.

This might help them stay clean, feel better, or just have fun together.

It's like when you give a friend a back scratch to make them feel good.

The scientists wrote about this in a special science book called Current Biology.