Dolphins are mammals closely related to whales and porpoises. Dolphins have a powerful and streamlined body. They are found in all seas and oceans. Dolphins can be told apart from porpoises by their nose‚ which is beaklike‚ and also their conical teeth. Porpoises have a flatter nose‚ sharper teeth‚ and a more solid body. There are 32 known species of dolphins. The bottle- nosed dolphin is often the species used in aquatic shows. The common dolphin inspired many Mediterranean folk lores. Both
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Dolphin Marine Life Research Paper Throughout the years‚ the dolphin species has become more and more at a risk of extinction‚ primariliy by the demolition of their environments as well as both the unintentional and purposeful killing of dolphins due to seine fishing and harpoon dives. Dolphins first appeared on Earth some 11 million years ago during the Miocene period (“Earth Science Reference Tables”). It has been decided that dolphins first evolved from Odontocetes‚ large toothed wales‚ that
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“Splish! Splash!” The sound of bottlenose dolphins jumping and swimming around their tank excites a family at SeaWorld as they wait to experience their first encounter with the dolphins. Every year‚ bottlenose dolphins bring joy to hundreds of people in both captivity and the wild‚ but what do people truly know about them? Bottlenose dolphins are actually unique and interesting creatures. Bottlenose dolphins are one of thirty-two species of marine dolphins (World Book 297). Their scientific name
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Dolphins are cetacean mammals closely related to whales and porpoises. There are almost forty species of dolphin in 17 genera. They vary in size from 1.2 m (4 ft) and 40 kg (90 lb) (Maui ’s dolphin)‚ up to 9.5 m (30 ft) and 10 tonnes (9.8 long tons; 11 short tons) (the orca or killer whale). They are found worldwide‚ mostly in the shallower seas of the continental shelves and are carnivores‚ eating mostly fish and squid. The family Delphinidae‚ the largest in the order Cetacea‚ evolved relatively
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research suggests that dolphins are second only to humans in smarts. - MRI scans indicate that these marine mammals are self-aware. - Researchers think dolphins are especially vulnerable to suffering and trauma. When human measures for intelligence are applied to other species‚ dolphins come in just behind humans in brainpower‚ according to new research. Dolphins demonstrate skills and awareness previously thought to be present only in humans. New MRI scans show that dolphin brains are four to five
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Dolphins are highly intelligent marine mammals and are part of the family of toothed whales that includes orcas and pilot whales. They are found worldwide‚ mostly in shallow seas of the continental shelves‚ and are carnivores‚ mostly eating fish and squid. Dolphin coloration varies‚ but they are generally gray in color with darker backs than the rest of their bodies.According to wikispecies‚ there are 41 species of dolphins of the family delphinidae or oceanic dolphins. Diet Dolphins consume
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EVOLVING DOLPHINS The Evolution of Dolphins JD Biology 101 January 16‚ 2011 Professor: Abstract Dolphins are a fun and playful species. They have evolved to be well suited for their aquatic environments. Over many years these animals have gone from land dwellers to deep-sea divers. These amazing creatures are considered one of the top predators in the marine ecology system. The Evolution of Dolphins Imagine you are at Six Flags Discovery Kingdom swimming with the dolphins. The trainers
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Did you know that dolphins has its own signature whistle to distinguish it from other dolphins‚ much like a human fingerprint? Dolphins have complex brains and signs of self-awareness. In this‚ you will know few about the anatomy and senses of dolphins‚ and their behavior also. So‚ dolphins have a streamlined fusiform body‚ adapted for fast swimming. The tail fin‚ called the fluke‚ is used for propulsion‚ while the pectoral fins together with the entire tail section provide directional control
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Anuj Arora July 10‚ 2011 Critique Mark Davis Not so Motherless In Elisabeth Panttaja’s‚ article Cinderella: Not So Morally Superior the author offers an analysis of the classic fairy tale Cinderella. Panttaja’s analysis may be off-putting to some because she describes Cinderella as being crafty and not a princess who is virtuous or patient. Panttaja claims that Cinderella was not as motherless as it seemed. She does on to say that we cannot assume that just because she is the heroine that she
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Dolphins Surprisingly dolphins aren’t fish! A dolphin is a mammal. Like every mammal the dolphin is warm blooded‚ isn’t born in eggs‚ and breathes air. A dolphin usually breathes once or twice a minute. A dolphin can hold its breath no longer than seven minutes but only if it is an emergency. Dolphins do have a tiny bit of hair! The only place there is hair is right next to the blowhole. Dolphins have blubber instead of fur. Blubber gives a dolphin their streamline shape. Blubber also is a cover
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