Flying Whale?

https://www.foxnews.com/science/dead-humpback-whale-in-brazils-amazon-jungle-puzzles-researchers?fbclid=IwAR0_fA09su8AHyD1Oz-5x6Rnd48euz2WS2aIHvJQNJfqwyFxf7vq7Ax5QqQ