Dating isn’t hard unless you’re a grebe. They raise the bar really high where attracting and keeping a mate are concerned. These water birds put on a seven-minute bird version of ballet through imitating one another’s movements while rising from the water and running along the surface. In unison, they trip along and flap their short wings before submerging under the water and returning with grass. This is usually done during the spring across 66 feet of water making them the largest vertebrates to walk on water. So if you can’t walk on water, you have no chance in this love dance.