Everyone knows that dolphins are smart and safe.
But most probably you never heard that they could miss people.
The hero of the story is one dolphin who missed humans during the quarantine. So, when he saw people he brought them gifts from the ocean. The name of the dolphin was Mystique.
The mammal keeps things in his mouth and gives them to people.
The people collected the things that Mystique gave them.
No one taught him to do so but he did. He thought that people would like it and did it.
And it became a habit for him.
And he may start to bring even more valuable things from the ocean that will interest people even more.