Assertion: sperm whale's predator | /r/HasProperty | the shastasaurus
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text: Some other interesting - and terrifying! - predators include the Shastasaurus, a reptile 21 meters (68 feet) long; Elasmosaurus, a 14 meters (45 feet) reptile that swallowed stones whole, or the Mosasaurus, which looked like a 15 meter (50 feet) crocodile.