do dolphins actualy swim in and out of sunkin ships?
104264
It is probably doubtful that they do.
760601
Dolphins have to be conscious to breath. This means that they cannot go into a full deep sleep, because then they would suffocate. Dolphins have "solved" that by letting one half of their brain sleep at a time. This has been determined by doing EEG studies on dolphins. Dolphins sleep about 8 hours day in this fashion. \n\nA dolphin's behavior when sleeping/resting depends on the circumstances and possibly on individual preferences. They can either:\n1. swim slowly and surface every now and then for a breath\n2. rest at the surface with their blowhole exposed \n3. rest on the bottom (in shallow water) and rise to the surface every now and then to breath.
864207
Yes, it is called a wolphin. Part common bottlenosed dolphin, part false killer whale. I believe. Here's a link to be sure.
549887
It depends on your expectations.  Some tours only let you touch the dolphins--others let you swim with them, but not touch them--and still others let you do both, swim and touch. Find out the details, and decide if it is worth it to you. Cruise critic has forums where you can communicate with other cruisers and find out their experiences.
467532
Dolphins live in a tribe.There can be up to 150 dolphins in each tribe.The mother is the centre of the family.\n\nWhen hunting they use a method called "Kettle technique".\nThey manage to gather the fish together into a ball shape by letting out piercing cries and by surrounding them with bubbles. In this way it is very easy to catch them.\n\norcas work in co-operation with one another, swimming in unison to create a wave pattern in an attempt to knock the seals off of the ice. This clever hunting technique quickly and efficiently could provide dinner for a pod of orcas.\n\nI once read about a incident where the orcas followed a young blue whale and its mother for 4 days and when it got exhausted they had eaten it.The mother was too big for them and they could possibly not harm it.
792209
yes it is. chimps swim in a very fast albiet wierd way. they use all for limbs and do a cross of doggy paddle and frog paddle. i believe its called the monkey paddle.\n\nhope this helps
878508
Guppies don't really hear... And if they did, it wouldn't be by their gills. They use their gills to breathe. Instead, they follow vibrations. I'm not quite sure how, but I think they have a sense organ that detects vibrations in the water.
397202
What is the difference between a dolphin and a porpoise? I heard this question asked, on Johnny Carson. And, Johnny decided that a dolphin was a mammal, and a porpoise was a fish. Wrong. They are both mammals, and are very closely related. The porpoises have a rounded head, while the dolphins have a protruding snout. They are smaller members of the toothed whale family, to which killer whales and sperm whales belong.\n\nTo complicate things, there are a couple of fish which are also called dolphins. I assume that these are sometimes called "dolphin fish" to avoid confusion. But, the well-known dolphins are those cute mammals, like Flipper (who is a bottle-nosed dolphin).\n\nMammals have hair, breath air, give birth to live babies (platypuses and echidnas lay eggs), and feed milk to their young. Whales breath air (they can hold their breaths for long times), give birth to live babies, and feed milk to their young. Where is their hair? Evidently, they have a small amount of hair around their blow-holes, those holes, in the top of their heads, that they breath through.\n\nThe toothed whales are among the most intelligent of all animals. The killer whale (orca) apparently has a brain mass to body mass ratio (a rough measure of intelligence) which is greater than that of humans. Incidentally, while toothed whales are predators, there is no record of any killer whale ever having killed a human being.
965123
Yes according to Smithsonian National Zoological  Park,\nThe Mule can swim.
425731
hold on to its fin and swim on the side of the dolphin
397272
There are a lot of urban myths, this could be one. Still it is possible that a social animal like dolphins may try to help a human in distress. I suspect that they would easily detect our panic with their hearing. I doubt that it is totally instinctive since there is no apparent value to the dolphin. It could be play. Have you seen the footage of killer whales tossing seal cubs around as toys? Unfortunately there are records of dolphin pods fighting each other.
488855
Mammals: Dolphin\nRange: all the oceans of the world\nHabitat: some are mainly coastal but other spend their lives far at sea\n\nIt’s all relative\nYou might not realize that dolphins are closely related to whales. The scientific order, called Cetacea, includes dolphins, whales, and porpoises. The dolphin family Delphinidae has 36 species in all. It can get confusing at times, because some members of the dolphin family have the word "whale" in their common name. In fact, the largest dolphin is the killer whale! Depending on the species, dolphins range in color from white, pearl, and pink to darker shades of brown, gray, blue, and black.\n\nRange\nDolphins can be found in virtually all the seas and oceans of the world.  Some species are sharply restricted, but many, like the common dolphin, Delphinus delphis, or the bottle nose dolphin, are found worldwide.  Several species are found in fresh water, notably the Ganges River dolphin, Platanista gangetica; the rivers of South America are the home of the long-snouted dolphin, Inia geoffrensis, and the small, graceful Sotalia fluviatilis, occasionally seen as far as 1,553 miles up the Amazon River.\n\nDolphins are quite abundant in some areas of the world.  Off the coast of Japan, for example, populations of the white-sided dolphin, are estimated at 30,000 to 50,000 individuals.  In many species, schools of up to 1,000 travel together, while some species, such as the bottle-nose dolphin, tend to be found in smaller groups of less than 100. \n\nRANGE:\nMost species live in tropical and temperate oceans throughout the world. Five species live in rivers.\n\nHABITAT:\nAll but five of the 34 dolphin species live in tropical and temperate oceans. Five species that live in rivers: baiji (Chinese River dolphin), boto (Amazon River dolphin), franciscana (La Plata River dolphin), Ganges River dolphin and Indus River dolphin.\n\nCHECK THIS:\n32 Dolphin Species\nhttp://www.dolphin-isl-greenware.org/marine_lab/blue_hangar/egdolfaq.htm#faq2\n\nhttp://www.enchantedlearning.com/themes/dolphins.shtml
283592
They are part of the food chain for many species, whether it be at the beginning or in the middle. If dolphins disappeared, certain species would become over populated, and others would die off.
358470
Dolphin's don't 'sleep' in the sense that we do. They do however have conscious control over their breathing like we do, in which case loosing consciousness in the ocean could be quite deadly. Research into this area suggests dolphins 'sleep' one cerebral hemisphere at a time, meaning they close down one half of their brain for a little while, letting the other half take care of the necessary functions such as breathing.
100936
It really depends on the dolphin, bottlenose dolphins live in warm coastal waters, like Mexico and Florida.  Some dolphins live in Japan, plus the Chinese Pink Dolphin and the Amazon River Dolphin.
438215
Most mammals are able to swim if they absolutely have to.  It's true that some might drown while attempting to, but that doesn't mean that the species itself can't swim.  Dolphins and seals sometimes drown too, but no one would say they can't swim.\n\nHow well a particular species of mammal can swim depends a lot on their physiology.\n\nAnimals with higher density of muscle than fat tend to sink instead of swimming.  Even if they have the limb mobility and strength that should be allow swimming, they have tremendous difficulty keeping above water.  Most primates actually fit into this category.  Chimpanzees in particular tend to sink like a stone in water, and avoid swimming at all costs.  Humans are very unusual in their ability to swim, and affinity for water (which raises a whole other set of questions, but that's another topic).\n\nIf they don't have much fat, thick fur can also help keep a mammal afloat.  Dense underfur traps air and can act like a flotation device.  Baby sea otters actually have difficulty diving because their fur traps so much air that they can't swim hard enough to reach the bottom.  Once again primates, with their thin, sparse coating of hair lose out on the flotation front.\n\nAnother factor is limb mobility.  Critters that can't move their arms and legs as swiftly or don't have enough surface area to push water aside tend to be crappy swimmers.  Anteaters tend not to be great swimmers, and camels aren't likely to win any swim meets either.\n\nIn general, mammals are pretty good swimmers.  Most mammals have some fat, most of them have hair or fur to trap air, and they have the limb mobility to move around.  Mammals can also close their mouths or noses and block their breathing passages so they don't take water in.  Critters like insects and spiders don't have that option, and unless they have other adaptations they tend to drown fairly easily.
454154
Dolphins are being protected now, and are growing in numbers again, and they seem pretty happy when I use to see them! But im not a dolphin, yes yes...believe it or not...I'm not. =)