I had an employee at a touch tank at an aquarium explain to me that stingrays swim around in giant schools constantly touching each other so they really just like being pet and touched, and as we were chatting (it was a really slow day) I could see the stingrays dancing and getting antsy because they weren’t getting enough attention and the employee just kept petting them as they kept coming up and bouncing out of the water clearly going “Pet me! Pet me!”