Reggie, a 7-year-old Great Dane from Idaho, and Pearl, a 4-year-old Chihuahua from Florida, put their (size) differences aside for a day of fun.

A playdate between the world’s tallest and smallest living dogs went the way of most dog park encounters despite the 3-foot (0.91-meter) height difference — lots of tail wagging, sniffing and scampering.

There's about a three feet difference in size between the world's tallest and smallest dogs, according to Guinness World Records.