Jaws - Hit by whale

As he sounded, trailing clouds of phosphorescence, the great white struck. It snatched off a tiny pectoral fin, a vestige of land legs, and destroyed the whale's stability. The sperm spiraled helplessly for a moment, unable to get his bearings. He felt the shark boring in on his blind side and began to flail his flukes.
But now, in a flash of searing pain, he realized that the creature was fastened to his side, burdening him. The sperm bellowed angrily, for in more agile days he might have shaken him loose and slammed out his life with one enormous swipe.
The shark hung on, but the whale would not give up. He had fought a dozen males as large as himself and won all the fights but the last. In agony, he rose to the surface and broached like a dolphin, carrying the shark with him high above the waves. At the crest of his leap he turned and fell, slamming his fifty-ton body on the writing, tearing shark.
The blow dislodged the great white shark and stunned him. He swam away.
For a moment the sperm whale rested, rocking in waves of pain. He blew, spouting a bloody fountain fifty feet high, with a sigh that could be heard for half a mile.
The shark circled, shaking his head. The smell of blood, heavy in the water, drew him back, and he bored in on the same gushing wound.

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Jaws: The Revenge, Part 1, Chapter 4