Found in virtually all seas and oceans of the world, The Dolphin eats fish and squid. These lively mammels are very social and travel in groups (called pods) of 20 to several hundred. Females give birth after a 10 to 12 month pregnancy and mother and calf stay together for two to four years. Dolphins can't go into a full deep sleep because they have to be conscious to breath. They solve this problem by letting one half of their brain sleep at at time.
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