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Adaptations Project (Harp Seal)

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Amelia Rose

on 14 April 2013

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Transcript of Adaptations Project (Harp Seal)

The Harp seal is 1.6m-1.9m long, weighing an average of 400 lbs. Size The Harp seal is born with a yellowish white coat that it sheds at 3 weeks old, for the rest of its life it's coat will be light grey with dark rings on it's back Fur and Colour Pagophilus groenlandicus Other known as the Harp seal or the Saddleback seal Diet The Harp seal is a carnivore that feeds by diving around 100m and eats fish such as cod, and halibut. The Harp seal also eats krill Predators The Harp seal is hunted by animals like the polar bear, and the killer whale. Another predator is us, humans. There is 3 distinct populations of harp seals, the three are: the northwest Atlantic population, which breeds in the the Gulf of St. Lawrence and Newfoundland and Labrador. the east Greenland population breeds in Greenland, near Jan Mayen Island. The Barents Sea’s seals breed in the White Sea near Russia. Harp seals are semi-aquatic animals, spending most of their time in the ocean. Habitat Adaptation Harp seals can spend up to 15 minutes underwater, they do that by saving their oxygen, by lowering their heart rate by 90% so blood only flows to the nervous system and the sense organs, nowhere else. Their lungs are adapted to diving as the seal has a system that acts like an anti-glue called the pulmonary surfactant system, which re-opens the alveoli, small sacs under the cells’ membranes that separates gases and nutrients.Seals can see underwater because they have a clear screen protecting their eyes from the salt water Seals molt once a year to get rid of their old skin and have a new skin. They spend lots of time on land while molting to maintain their body temperature Interesting Fact! Sources http://bioweb.uwlax.edu/bio203/s2012/lind_vale/classification.htm
http://bioweb.uwlax.edu/bio203/s2012/lind_vale/adaptation.htm Polar Bear Arctic cod Plankton Krill Killer Whale Harp seal / Saddleback seal
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