Blue whales are the largest animals that have ever lived on earth -- even bigger than dinosaurs.
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The whales' breath shoots out of their nostrils and can go more than 30 feet in the air.
There have been consistent sightings for the last five days.
VIDEO | Dolphin stampede greets whale watchers off OC coast
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Video: Dolphin stampede greets whale watchers off Newport Beach coast
MORE | Rare white Risso's dolphin spotted off Laguna Beach
Rare bright white Risso's dolphin spotted off Laguna Beach