A dead, dead ship had crashed into the sea and it had come from the sky. It had been much bigger than the odd little ship. The big one nearly fell on it. Then the humans had decided to jump in. They were clad in the wierdest plates she had seen, made of ship and skin. She could see the very sunlike human in one of them.
Why had the humans decided to huddle in such bulky things, when you could simply swim? She knew they had no fins or tails. Legs still worked if you moved them right.
Ah, humans needed air more regularily than whales. That mustve been it. Much of her living prey had been killed in this fashion. The bulky human things were full of air.
The dead ship held her no more interest than a pile of stones, but the humans still toiled in it's depths. She could see that the very sunlike human had seen her by it's gestures. By now she was somewhat sure that the wave of it's hand was a sort of acknowledgement. When one human did it to another, the second human usually copied the motion. Humans did that a lot.
She raised a hand slowly and carefully. Then she flailed it in a similiar manner as the very sunlike human. It wasn't quite the same.