-advertisement-
20%

And which silhouette belongs to our hippo?

Fact Lab

Check out this great content

Continue to play afterwards
-advertisement-

Interesting fact:

Lighting changes our perception and can help to reveal hidden images on surfaces we otherwise wouldn’t see. When the light changes color - particularly if we use blue, red, or green light – it can activate different cells in our eyes and completely change the information in front of us.

-advertisement-