Dolphins Recognize and Admire Themselves in Mirrors.
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There are 40 extant species of dolphins.
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Dolphins have the longest memory in the animal kingdom.
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The U.S. Navy has 75 trained dolphins to detect enemy swimmers and underwater mines.
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The average lifespan of a dolphin is 15 years. However, some of them lived 50 years.
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Dolphins sleep with one eye open.
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The fastest a dolphin can swim near the surface is 33.5 mph (54 km/h).
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Dolphins can communicate with one another over a telephone, and appear to know who they are talking to.
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Dolphins and whales give birth
with the tail first instead of the head.
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Male dolphins are called "bulls", and females "cows".
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A 2-headed dolphin was discovered on a beach in Turkey in 2014.
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Killer Whales are actually dolphins, not whales.
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Dolphin copulation happens belly to belly.
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Dolphins give each other names and will answer to it even when called by dolphins they don't know.
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The wolphin is the result of the union of a bottlenose dolphin and a false killer whale.
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Dolphin meat is consumed in Japan and Peru.
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Infanticide has been observed in bottlenose dolphins.
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There are albino bottlenose dolphins.
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Dolphins and whales squeal
to express delight.
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In 2014, a deceased two-headed dolphin was discovered washing up on shore in the waters off Turkey's west coast.
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A bottlenose dolphin may use its tail flukes to flip a fish out of the water, and then retrieve the stunned prey.
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A dolphin's stomach is compartmentalized for rapid digestion.
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Some offshore dolphins were found with deep-sea fishes in their stomachs. This evidence suggests that offshore dolphins may dive to more than 500 m (1,600 ft).
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A study indicates that dolphins talk to each other in sentences.
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Dolphins shed the top layer of their skin every two hours.
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Dolphins trained to kill for the Soviet navy were sold to Iran because they could no longer afford to feed it.
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Dolphins intentionally chew on toxic pufferfish to get high.
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Dolphins go on killing sprees when they're sexually frustrated.
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Dolphins tenderise octopuses by bashing them around before eating them.
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Dolphins have no vocal cords.
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Dolphins are not automatic air-breathers like we humans are. Every breath is a conscious effort.
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Only one-half of a dolphin's brain goes to sleep at a time.
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