Man "dances" with seal

A strangely beautiful clip has emerged from Canada of an encounter between a zoo visitor and a seal.

In the video, which was captured at Winnipeg Zoo earlier this week, a man stands at an underwater viewing window, looking into the eyes of a seal on the other side of the glass. Every time the man raises his arm, the seal responds, swirling about under water. It's almost as though the two are dancing.