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Go to New Zealand's South Island where a whale-watching tour group caught a sperm whale with its tail in the air, heading down into Kaikoura Canyon to hunt for food.
Find out why the beloved orca is neither a ruthless killer nor a whale in this feature.
See how whales' tails are used for more than just propulsion in this photo from the waters of Hawaii.
Get fun facts on orcas, plus video, audio, photos, and more at National Geographic's Kids site.
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Eighteen percent of the world's population can't get safe drinking water. Test your water knowledge.
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