**Results of the research work regardin peguins life
Theme summary is given below
**
Though penguins r assumed to be native to he south pole , only 4 out of 16 species hav evolved the survival adaptations necessary to live and breed in the antarctic year around.besides these 4 species there r a number of others including the yellow feathered penguin and the king penguin tht visit antarctic regularly but migrate to warmer waters to breed.
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In the dark days of winter, when the antarctic sees virtually no sunlight, the penguins tht remain on the ice sheet sleep most of the day.To retain heat, penguins huddle in communities of up to 6000 of their own species.When its tim to create a nest, most penguins build up a pile of rocks on top of the ice to place their eggs.The emperor penguin however doesnt bother with a nest at all.The Female emperor lays just one egg and gives it to the male to protect while she goes off for weeks to feed.
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In the huddle, the male penguins rotate regularly so tht none of the penguins hava to stay on the outside of the circle exposed to the wind and cold for long periods of time.The movement provides enough warmth until they can head back into the inner core and rest in the warmth.
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In order to reduce the cold of the ice ,penguins often put their weight on their heels and tails.Antartica penguins also hav complex nasal passages tht prevent 80% of their heat from the leaving the body.When sun is out, the black dorsal plumage attracts its rays and penguins can stay warm enough to waddle or slide about alone.
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Antarctic penguins spend about 75% of their lives in the water.In order to stay warm in these temperatures penguins have to keep moving.Though peguins dont fly in the air they r often said to fly through water.ANtarctic penguins also have unique feathers tht work similarly to a waterproof diving suit.Penguins also have an amazing circulatory system, which in extremely cold waters diverts blood from the flippers and legs to the heart.
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while the harsh climate of the antarctic doesn’t threaten the survival of antarctic penguins overheating can be a concern and there fore global warming is a threat to them.Though they have certain climate features such as fewer feathers and less blubber to keep them cool on a hot day.Penguins who r built for cold winters of the antarctic have other survival techniques for a warm day, such as moving to shaded areas , or holding their fins out away from their bodies
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