Eyebleach

Yep. I Meant To Do That.

Yep. I Meant To Do That.

Video Credits to: u/TruthfullyTidy
< Previous Scientists know that rats like to have their bellies tickled, so they used that as basis for testing happiness in rats. They found out that the ears of rats undergoing tickling became droopier and pinker - subtle signs of being relaxed and happy Big Kitty Scritches! Next >
Download Video   View Source & Comments