This is a very nice story but the story is that an animal helped another animal which is generally unusual behavior in animals. Dolphins have been documented doing this for humans many times.
Helping other species is NORMAL behavior in humans however and it’s not unusual for people to extend this normal behavior to wild animals.
The story here is that we have a documented case of a wild animal behaving like a human.
Maybe the dolphin was helping the humans. They were unsucessfully trying to get the whales to sea so .......