tonee its the water itself that weights a lot, stack 10 gallons on top of each other on your chest, see how that feels, then go and do 20, its pretty impressive. now true its on land so the gravity will effect it a bit more but, even if you take into account the amount of buoyancy that the ocean provides, that water is still on top of you, it weights a bit less so it takes more to crush but there is a limit. your ears are a super thin membrane that usually is the first to go due to pressure. there are many sea dwelling creatures that go top to bottom, for example the sperm whale goes down to great depths, as well as the giant squid, researchers believe that is where the great squid live, but from time to time they seem to surface when ill. most of the "deep sea" beasts make their way to the shallows when they are about to die. to survive at great depths the animals have to lack a skeleton, therefore when surfacing they have no body ridgity and can not typically breath, or swim as their body was not designed to move with such low pressure. we have probes that dive to the bottom of the ocean every year that find new sea life every time. there is a lot of "empty" space however, its usually the cracks or canyons that attract the really cool stuff. montery bay is a great example of that, i believe that there is more bio diversity there than the water around it(there is a huge canyon there). hell even in the shallow water we are still finding new fish all the time, there is a pygmy sea horse that looks just like the coral polyps it attaches to, making it near impossible to spot without a macro lens. hell there are new fish found almost every week/month on reefs alone!
damn!
