"Effects of sonar on dolphins and whales" Essays and Research Papers

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    Dolphin Killings in Taiji‚ Japan Brutality‚ crimson waters‚ what a gruesome spectacle it is to see the horrifying sight of dolphins being slaughtered by Taiji fishermen for a profit. In a total of six months the murderers will catch and kill about twenty three hundred of Japan’s annual dolphin population of twenty thousand dolphins. The capture of the dolphins is sinister. The fishermen bang pipes together under the water to throw off a dolphin’s hypersensitive sonar in order to drive the dolphins

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    Dolphin Research Paper

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    Gallagher 27 November 2012 Dolphins in Captivity Introduction Most people are fascinated with dolphins and crave to see them in Sea World‚ or another aquarium‚ and even enjoy seeing them perform in shows. However‚ most people do not think about the harm that dolphins go through in order for the public to see them. Dolphins go through an immense amount of physical and mental harm solely for our entertainment. I never thought about the harm they go through when I first saw dolphins perform in a show. I

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    Dolphin Research Paper

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    Dolphin Dolphins are marine mammals that are closely related to whales and porpoises. There are almost forty species of dolphin in seventeen geaner. They vary in size from 1.2 m (4 ft) and 40 kg (90 lb)‚ up to 9.5 m (30 ft) and 10 tonnes. They are found worldwide‚ mostly in the shallower seas of the continelnta shelves‚ and are carnivores‚ mostly eating fish and squid. The family Delphinidae is the largest in the Cetacea‚ and relatively recent: dolphins

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    other ways to communicate such as sonar and song. Mammals such as the Orca‚ Bottle-Nosed Dolphins as well as many other species of dolphins‚ and different types of Whales are able to use their voices under water to detect and “speak” to other conspecifics. This range can reach distances over miles and miles away‚ and can also be influenced by the distance at which these different species are from

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    Sperm Whale

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    Sperm whale can be a good symbol of WWF.Sperm whale is very special‚ because of ambergris. Ambergris is a solid‚ waxy‚ flammable substance of a dull grey or blackish color produced in the digestive system of sperm whale. When initially expelled by or removed from the whale‚ The fatty precursor of ambergris is pale white in color (sometimes streaked with black)‚ soft‚ with a strong fecal smell. Ambergris is one of the most popular substances in the world. Nowadays‚ gold just is $30/g

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    Whale Rider

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    Professor David Burrill MSC 20 11 March 2013 Whale Rider The 2002 movie Whale Rider tells a story of a young woman named Paikea growing up in patriarchal society known as the Maori tribe. Pai‚ short for Paikea‚ spends her life trying to get her grandfather to accept her. When she was born‚ her twin brother died at birth‚ leaving the grandfather’s dreams shattered. He needed a male so he can grow up to be chief. The chief will be known as the Whale Rider and he was supposed to bring the village

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    The Evolution of Whales

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    The Evolution of Whales “Their tongues alone can weigh as much as an elephant and their hearts as much as a car.” The animal called whales what are the largest‚ intelligent and aquatic mammals. However‚ whales were not the aquatic animals at the beginning. After thousands of years of evolution‚ since changes in the terrestrial environment and the demand for food‚ the whales become appearance like a graceful arc from the four limbs. We have to imagine that what happened in the past thousand years

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    Blue Whale

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    Common Name- Blue Whale Scientific Name- Balaenoptera musculus Family- Balaenopteridae- derived from the French‚ rorqual meaning whale Related Species- Sei Whale‚ Humback Whale‚ Fin Whale‚ Bryde’s Whale‚ Eden’s Whale‚ Common Minke Whale‚ Antarctic Minke Whale‚ and Omura’s Whale. Family Traits- Members of the Family Balaenopteridae have a narrow elongated flipper‚ feed on crustaceans by gulping water and pushing it out through baleen plates‚ have a dorsal fin and gestation last from 11-12 months

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    Humpback Whales

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    Marine Biology Research Project Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Cetacea Family: Balaenopteridae Common Name: Humpback whale Genus Species: Megaptera Novaeangliae Common Name: Humpback whale Genus Species: Megaptera Novaeangliae General Description: A. Body Symmetry: Bilateral B. Special Pigments or Coloration: Dark grey with lighter underbelly; flippers and flukes are grey and spotted with white C. Habitat: (Zone) Benthic and coastal (Geographic):

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    whale rider

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    Whale Rider 1) The Maori people have migrated from the island Hawaiki‚ around 800 to 1200 AD. The story was about a family and they were Maoris. A man named Koko is grandfather to a little girl named Paikea. Koko was the leader of the Maori people in the place they lived in and he wanted to find a new leader‚ which had to be a boy if he wanted to follow the tradition. The person who actually head to be the next leader was Koko’s grandson‚ but he didn’t have a grandson‚ and he could not do like

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