When are dolphins most active?
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Dolphins are most active when the herd is threatened. They will form a defensive line from attackers.
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Animals that can't swim away.
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The Chinese River Dolphin (Lipotes vexillifer) is a freshwater dolphin found only in the Yangtze River in China.
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http://www.southwest.com.au/~kirbyhs/\nhttp://library.thinkquest.org/3935/DOLPHINS.HTM\nhttp://www.google.ca/search?hl=en&q=types+of+dolphins&meta=\nhttp://www.crystalinks.com/dolphin.html\nhttp://www.worldscreatures.com/water-species/dolphins/
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Some of them are, including the Common Dolphin in Greece, Hectors Dolphin in New Zealand.
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Dolphins are mammals, first of all, which means that they reproduce and female give births to offsprings (babies).\n\nThe babies stay often with their mothers until they are capable of hunting by themselves.\n\nBy then, they are more independent but stay in groups.\nLater on as adults, dolphins find mates and reproduce and give birth again to dolphins.\n\nLife cycle repeats...\n\n\nFor more info:\n\nhttp://library.thinkquest.org/J0110164/Life%20of%20the%20dolphin/life%20cycle.htm
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How long do dolphins actually live? \n\nIt depends on which species you are talking about. Bottlenose dolphins may live for 50 years, but most only live for 25 years.
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You want to check out Key West or Key Largo...\nand here you can swim with the dolphins\nhttp://www.dolphinworld.org/fl-swims.htm\n\nGood luck
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5-10 MPH is about average. Also, try "drifting" a live sardine or pogey. Look for "weed-lines" and "clear" water.\n\nAnd for all those people who think we are fishing for "Dolphin's"; there is a fish called Mahi-Mahi, Dorado, and "dolphin". We are not fishing for "mammal" type "dolphin".
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Observations of bottlenose dolphins in aquariums and zoos, and of whales and dolphins in the wild, show two basic methods of sleeping: they either rest quietly in the water, vertically or horizontally, or sleep while swimming slowly next to another animal. Individual dolphins also enter a deeper form of sleep, mostly at night. It is called logging because in this state, a dolphin resembles a log floating at the water's surface.\nWhen marine mammals sleep and swim at once, they are in a state similar to napping\n\nAdult male dolphins, which generally travel in pairs, often swim slowly side by side as they sleep. Females and young travel in larger pods. They may rest in the same general area, or companionable animals may pair for sleeping while swimming.\n\nWhile sleeping, the bottlenose dolphin shuts down only half of its brain, along with the opposite eye. The other half of the brain stays awake at a low level of alertness. This attentive side is used to watch for predators, obstacles and other animals. It also signals when to rise to the surface for a fresh breath of air. After approximately two hours, the animal will reverse this process, resting the active side of the brain and awaking the rested half. This pattern is often called cat-napping.
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The Bottlenose whales and Sperm whales can stay underwater for almost 2 hours on long dives. Most of the large whales, like the Blue whale and the Fin whales, rarely stay down longer than 40 minutes while large dolphins such as the Bottlenose dolphin usually stay down for less than 15 minutes. The smaller Common dolphin dives for less than 3 minutes.\n\nThe longest recorded dive by a whale (Guinness Book of Records) was that of a Sperm Whale. On 25th August 1969 a bull Sperm Whale surfaced from a dive lasting 1 hour 52 minutes.
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Blue whales live about 25-30 years!
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elephants, great apes, and dolphins\nhttp://news.nationalgeographic.com/news/2006/10/061030-asian-elephants.html
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dolphins sleep by "turning off" half their brain at a time. They can't sleep as we do because for them breathing is not an autonomic impulse. In other words, they breathe like we move our arms, they need to decide to breathe, then get their muscles to carry out the orders. So a dolphin will shut off half their brain at a time. While one half gets some r & r, the other half makes sure the dolphin keeps surfacing at regular intervals to breathe.
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Check a aquarium. Also, you can check the Internet and if you live near the coast, there is probably going to be some sort of research center nearby that would have people who know a lot of stuff about dolphins.\nCheck www.dolphins.org\nIt's a dolphin research center, I think.
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EASY !!  A dolphin.. And I didn't just write that because it was mentioned on your list. You'll find dolphins in every room of my home, and I swim with them every time I get a chance to do so ! They are magnificent mammals !!
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Dolphins don't live in just tropical marine waters. Dolphins live in colder temperatures too, as well as freshwater.\n\nKiller whales (yes, they are dolphins) live in cold waters, as well as warmer waters.\n\nChinese river dolphins live in fresh water.