We close our eyes when we kiss because shutting out the visual input leaves more mental resources to focus on other senses, like touch.
Trivia.com
Trivia.com
The manatee's eyes close in a circular motion, much like the aperture of a camera
Trivia.com
Snakes can't close their eyes, so they must sleep with their eyes open.
Trivia.com
Snakes can see through their eyelids even when they close their eyes.
Trivia.com
Sneezing is impossible to do with your eyes open
Trivia.com
Dolphins sleep with one eye open
Trivia.com
Rabbits actually have the ability to sleep with their eyes open. They go into a trance-like state, which is half sleep. The benefit of this is in the wild, it allows them to get away from predators in a hurry.
Trivia.com
Frogs can't swallow with their eyes open