can babies breathe underwater?
479513
During pregnancy, there is a stage where the human fetus has gill slits, but by the time a baby is able to survive outside it's mother, these have disappeared.  Babies, as we would think of a baby, can NOT breathe underwater- they have air breathing lungs, just like you, and would drown.\n\nThere is something called the mammalian dive reflex, which slows respiration, and can allow someone to survive for a short time (perhaps a few minutes depending on the circumstances) under water just from the oxygen they receive from the water, however this works best in very cold water, which has more dissolved oxygen.  People with smaller bodies, like babies and young children are more likely to survive longer under water.  This is where stories of kids serviving under lakes for long periods (15 min, or so) come from.
520410
The American Academy of Pediatrics actually states that "until your baby starts eating solid foods, he'll get all the water he needs from breastmilk or formula."\n\nAfter they are six months old, infants do begin to need some fluoride, and so that is a good time to introduce some extra water into their diet, especially if they are breastfeeding, or simply prepare their iron fortified infant formula with fluoridated tap water.\nBut before six months, the average healthy baby doesn't need any extra water.
196173
No, the whales just go in the water. I've seen this personally as one of the whales just let a huge one go in the tank while it was swimming around. This wasn't during the show, but there is a tank behind the stadium where you can see into the tank underwater. There were lots of kids around, including my own, and they all saw it. It doesn't traumatize kids, as poop is an everyday occurrence in little kids' lives. The important thing is that the tank has a good filter system to keep the water clean. Actually, all the kids there enjoyed the extra show!
871829
Well, first they adjust their body to the pressure, by jumping into the water and staying for a period of time.  I believe the suit also has some effect.\n\nThe pressure of water compacts the body in a way, so I would think smaller lungs for breathing, muscle cramps, etc.
868202
I float in a fresh water pool, don't you?  My head is not above water, but if my lungs are full of air I do not sink.  If I empty my lungs then I will sink.  What is your question?
554340
Yes you can. I have had them when i went swimming once and my friends can confirm this as they laughed at me :(.\n\nHiccups are a spasm of your diaphragm.\nWhen you inhale, it pulls down to help pull air into the lungs. When you exhale, it pushes up to help push air out of the lungs. But sometimes the diaphragm becomes irritated. When this happens, it pulls down in a jerky way, which makes you suck air into your throat suddenly. When the air rushing in hits your voice box, you're left with a big hiccup. I guess you could help relive hiccups if u dive deep in water as there will be more pressure trying to contract you rip cage which would reduce the amount of spasm and the holding of breath whilst underwater would probley help too.
535143
Yes, they make breathing motions, crying motions, swallowing, sucking, etc.\n\nThey can't make the sound because sound is caused by the vibration of vocal cords as air passed over them.  There is no air in the respiratory system yet so they can't make a noise.
642661
Self-Contained Underwater Breathing Apparatus
91287
They are still connected to the mother via the umbilical chord.  So even though it is out of the mother, it still gets its oxygen from the mother.  Once the chord is snipped, you'll notice that they baby will turn a little blue until it starts breathing on it's own.  That's why it's common to see the doctor giving the baby a small spank.  It's to get the baby to cry, which forces it to breath.
75836
Yes. But then you'd have to breathe in after that, which is not a good idea when under water.\n\nTry this experiment in the bath: inhale, blow the baloon, and then surface for air.
216448
it's safe if it's supervised, some mothers even choose to have their babies born in water. instinct makes them hold their breath.
279648
Harp seals breathe through their mouth and nose.  I have seen them go under for 30 minutes, but usually when they "play" next to your kayak they are under for 10 minutes and then pop up just off your bow.  With their head out of the water, they then rotate 360 degrees looking for dangers.\n\nThey protect themselves by being fast underwater swimmers.\n\nWe call the babies pups.\n\nTravel is a swim, waddle or hitchhiking on an ice flow.
61984
I believe this is natures way to get fresh air into the baby's lungs.  Also why doctors have been known to "spank the baby" to get it to cry.  Obviously, the baby has been drinking, eating, and "breathing" through the umbilical cord for the past 9 months and a breath of fresh air is just about the best thing for him/her.
522290
Easest way to learn to swim is underwater. Tell them to hold their breath....go under and kick their legs as fast as they can....show them the movements to make with the hands.\n\nI was pushed in the "Deep End" when I was 6...I had to swim or drown...I chose to swim.
605841
One word answers are not possible. If your teacher wants single word answers she is a moron.\n\nBirds, snakes and humans breathe using lungs.\n\nFrogs breathe using their skin and their gills when they are young and using their skin and lungs as adults.\n\nFish breathe using their skin and gills and also commonly use their swim bladder, mouth and stomach to breathe with.\n\nThe same applies to movement. Humans can move by walking or climbing or swimming or riding or driving or a bazillion other methods.\n\nFrogs and snakes may swim, or walk or hop or burrow or climb depending on the species and where it is.\n\nBirds may swim or fly or walk or hop or burrow or climb depending on the species and where it is.\n\nThere simply are no single word answers to these questions.
1084822
Put your three year old on your back and have him/her hold you around your neck. Then hold onto him/her and walk through the water with your child on your back in thigh deep to chest deep water. The resistance of the water is an excellent cardio workout. As well you can use a pfd on your kid and take him/her out to the deep end and glide him and her along with you. (you swim sideways and pull him/her along with one arm and going back you can alternate arms, so both get equal workouts) or you can just swim with your kid on your back. All of these are guaranteed to give you strong legs-really strong legs.
1011705
The Sperm whale can hold its breath for about an hour.   They live mostly close to the surface, but they have been known to dive as deeply as 10,500 feet to hunt the giant squid they eat, but average dives are about 4,000 feet deep.  They spout (breathe) 3-5 times per minute at rest, but the rate increases to 6-7 times per minute after a dive.   The sperm whale is the real life Moby Dick.\n\nI hope this helps.