Dogs can run after them, bring them with them, chew on them, and even initiate a tug of war.
Have you ever wondered what a dog would do if hundreds of tennis balls suddenly rained from the sky? This is exactly what happened in a YouTube video that was put online a while ago.
The results of the experiment were so much fun that people couldn't resist spreading the video around the world. To date, more than twelve million people have verified it.
“Our dog’s dream came true when a local tennis instructor gave us 300 used tennis balls,” the video description reads.
The pup comes flying back across the deck.