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different kinds of dolphins and their characteristics
caracteristic of the dolphins
caracteristic of the dolphins
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Dolphins, cousins to whales, member of the family Delphinidae, and an animal that captures the heart of anyone who sees one. This powerhouse of a marine mammal can swim at speeds of up to thirty-five miles per hour and renowned for the fact that they can jump out of the water, a feat meant to both conserve energy and to get places quicker. When they swim, they are as graceful as a swan and as playful as a little child. Well, read on to find out more about these amazing creatures. When you see a dolphin, you are in awe, but what sort of questions do you ask? How do they swim so fast, what do they eat, where do they live? First, the anatomy of a dolphin. We’ll start with a dolphin’s teeth. Dolphins have eighty to one-hundred cone-shaped teeth. These teeth are set up in a position to interlock and hold slippery fish in its mouth. Because the teeth interlock like that, and the teeth are as sharp as they are, dolphins cannot chew their food. Therefore, they must result to swallowing their food whole. To a dolphin, an open mouth is a sign of aggression, and clapping jaws are an even greater sign of aggression. This rarely happens unless it is during mating season because dolphins talk without opening their mouth. Dolphins have many ways of defending themselves from predators in the wild. One of which is pretending to be dead. This can scare away some predators, but predators like sharks might take this as a sign that it is fine to feed now! To protect themselves while sleeping, they close one eye and leave the other eye open as well as one side of the brain stops and sleeps while the other side doesn’t. This is useful in multiple ways. Dolphins have to remember to breath or else they will die, so the fact that one side of the brain is ... ... middle of paper ... ...n years can’t even start speaking to dolphins. What is even more astounding is that dolphins even have their own names! A few months after they are born, they make up a series of clicks, whistles, or both, to make themselves their own dolphin name! It just goes to show you how smart these animals can be. Where do you see dolphins the most, a river, the nearby lake? If you see one there, something is very wrong if you are in North America. South America might be fine, but usually dolphins live in the ocean. Forty types of dolphins live in the ocean while at least four different types live in freshwater habitats. The Bottlenose Dolphin, the Spinner Dolphin, and the Orca are all dolphins who live in saltwater habitats. Usually dolphins live in shallow water where you can see the bottom. Freshwater dolphins usually live in large rainforests like the Amazon Rainforest.
Orca whales are the largest members of the dolphin family. Orcas are very curious creatures, they like to sky hop, which is when they poke their heads out of the water and look around, and they can also dive to as much as a hundred feet. These social animals live in pods and stay with them for their whole lives. They are so family oriented that they can may sleep together in a tight circle and have synchronized breathing. Orcas can grow up to thirty-two feet and can weigh nine tons. They typically eat five percent of their body weight and are amazing hunters. The lifespan of an orca in their natural habitat is about fifty years. This lifestyle for them is wonderful because they can swim as far as they want to and are free. Orcas should not be held captive because the capture process is dangerous, it is not good for their health, and their trainers are at risk. Free Willy. Dir Simon Wincer. 1993.Video. Warner Bros Home Video
Killer whales are one of the most fascinating displays of ocean life. The killer whale has characteristics that are important to its survival in the ocean. It is interesting to know that killer whales have a plentiful diet. It is astounding to see how killer whales behave in the ocean. I plan to tell you about the killer whale, its characteristics, its diet, and its behavior in the ocean as well as the predation of the orca.
If you think you've seen one dolphin swim you've seen them all, Jason found one that promised to be different. He headed 5km off-shore to where the dolphins take you right into their world as you swim with the pod, the only place in New South Wales you can do that.
Orcas, or killer whales are majestic giants of the sea. They are actually the largest type of dolphin. They have long black bodies with distinct white patches near their eyes. A killer whale can be up to 32 feet or more in length, and weigh up to 12,000 pounds. Females are a bit smaller, but live longer (Gorman). The name “killer whale” apparently came not because it is a vicious whale, but because it preys on whales. They do not have any natural predators, and they are considered the “top dog” of the ocean. Not even the great white shark stands a chance against these superb killers. “Unlike sharks, killer whales are cautious hunters, sometimes spending hours harassing a 1,000-pound sea lion so it can easily be drowned” (Francis). Orcas use many hunting tactics that are unique to their species, which is what makes them invincible.
Bottlenose dolphins became part of a United States Navy program in 1959 for the purpose of conducting scientific research into their sonar and hydrodynamics in hopes of getting design ideas for submarines, ship hulls and weapons. It was discovered dolphins hear and navigate in the water by using their natural sonar, which happened to be more precise than most fabricated sonar systems. In the mid-sixties, Navy dolphins were used as mail carriers to underwater laboratories in their home of San Diego, California.
The dolphin is quite interesting. They have a high and falcate (curving) dorsal fin. The flukes from tip to tip are up to twenty-four inches long, or two feet long. ...
As mentioned above, dolphins are mammals, meaning they are warm-blooded animals and breathe oxygen. The Scholastic web site says that “Dolphins, like you and me, are mammals. They have teeth, are warm-blooded, have a four-chambered heart, and nurse their young from mammary glands. Dolphins also have hair, but not very much!” Additionally, they have eyes, a mouth, and live in families with a complex social structure. Unlike humans, they have no sense of smell. (Scholastic.) Many people may also wonder if dolphins sleep or not. They do, in fact, but not how most people may imagine. Dolphins have the ability to shut down one half of their brain to sleep while the other half of their brain keeps them slowly moving and surfacing for air. Once the first half is rested, they switch and the second half of their brain goes to sleep, as it were, and the first half is on duty. (MIT Sea Grant.) If the dolphin didn’t have this ability, it would surely drown with no oxygen to sustain it. This is but one of many fascinating characteristics of dolphins.
The phenomenon of diving animal physiology has been known since the time of Aristotle (Berta, Kovacs, and Sumich, 2006). It was not until the early 20th century that the physiology of prolonged marine mammal divers were studied closely, and it has only been recently that scientists have been able to understand the complexities of diving (Berta et al., 2006). The physiology of diving incorporates the study of many different components of how animals function (Costa, 2007). There are many factors that contribute to the phenomenon of diving responses in animals, which include the circulatory system, ecological factors, behavioral instincts, and neurological factors (Withers, 1992). Diving animals all face the same mechanical physiological obstacles,
They are the second smartest animal in the world. They nurture their young for most of their lives. They also socialise with any creature, unless they show signs of harm. Dolphins make very popular playmates and will come up to humans for almost anything. They rely on each other to live. They learn quickly and communicate well with one another. God designed dolphins with unique physical features and behaviors in order to glorify Him.
These two sea creatures both live in oceans,but have very different lives in the deep blue sea.Such as their brain smarts.A dolphin is the smartest sea creature in the world.For where a squid,doesn’t even have a brain.The squid also has no backbones.The dolphin does.Even though they have these different traits they do have many similarities.They both are very large creatures that can grow up to six thousand six hundred pounds!Both of them have no hair on their bodies.
The Humpback Whale, Megaptera novaeangliae, is part of the marine mammals group. They are found in oceans all over the world, they live in open waters. Even though they are mammals, they do not live on land (Monterey Bay Aquarium). Humpback whales are known for their magical song that can travel great distances. These gentle giants are omnivores, their main diet is krill. They are mostly found near coastlines feeding on tiny shrimp-like krill, plankton and small fish. Humpbacks migrate annually from summer feeding grounds near the poles to warmer winter breeding water closer to the Equator. Humpback whales are powerful swimmers, and they use their massive tail fin, called a fluke to propel themselves through or even out of the water! Mothers and their young swim close together, often touching one another with their flippers with what appears to be gestures of affection. Even though it takes more than one year for a humpback whale to grow fully, mother whales leave them after one year (National Geographic).
Whether a dolphin should be a person and should get rights like humans seems to be a very odd question. However, if we take a close look at what characteristics are present in humans that allow them to be persons, the same criteria applied to dolphins makes them persons as well.
This dolphin is being tested on how they are affected by pollution, starvation, marine debris, disease and contact with boaters, by having a pneumotachometer tracking its movement and breathing at the same time. Andreas Fahlman says, “It takes controlled programs like these to understand what is normal for (dolphins)” which means that very little research would be learned from these creatures if it wasn’t for places like Dolphin Quest. Alex Shorter adds, “In the wild it’s hard to understand what we can’t see. Here we can ask the cetaceans to participate”, he is the Assistant Research Scientist at University of Michigan. Many animals are affected by zoos, aquariums and rehabilitation centers, although the rehab centers are hated upon like the zoos and
the river. These dolphins used to be found in large groups or schools but are now
Dolphins are well known for their agility and playful behavior in the wildlife of all the oceans in the world. They have many characteristics, and also there are a variety of different types and kinds of dolphins, which make them very intelligent creatures. Dolphins are smart marine mammals and great swimmers. They are known to be very friendly to humans and other wildlife creatures, dolphins often display a playful attitude which makes them popular to human nature and the culture. They can be seen jumping out of the water,riding waves, play fighting and occasionally interacting with people swimming in the water. Dolphins love hanging along the sea shores of all beaches around the coast, where it is warm and tropical(Fun dolphin facts).Dolphins are believed to be the most intelligent animals on earth