Charlie Jacobsma slapped the surface of a pool enclosure at Chicago’s Shedd Aquarium and scanned the water for movement.

Moments later, the head of a beluga calf emerged, mouth agape in what looked like a ... "It’s almost like petting a dog or a cat, and you’ll see them come up and want to interact with us ...

Moments later, the head of a beluga calf emerged, mouth agape in what looked like a ... “It’s almost like petting a dog or a cat, and you’ll see them come up and want to interact with ...