Dolphin researcher Justin Gregg dives deep into the scientific wonders of one the world's most-loved animals to bring you this collection of fascinating dolphin trivia. Twenty-Two Fantastical Facts about Dolphins will delight dolphin aficionados with eyebrow-raising tales, covering topics like: Dolphins use tools Dolphins don't sleep Dolphins eat each other Dolphins fight in human wars Dolphins have ears in their jaws Dolphins call each other by name.