how do crocodiles stay underwater for a long time?

Answer 1

Alligators and crocodiles are able to basically do a self-bypass, they can cut the blood supply from their extremeties and slow their heart rate down to one or two beats per minute, keeping oxygenated blood going only to their vital organs. This allows a large gator to stay underwater for three hours or more. What the capabilities for a 20+ foot nile or saltie would be, I have no idea, but definitely more than that.

Answer 2

Well, I would assume it's just a special adaptation they have. It's the same thing as asking how dolphins can stay underwater so long- they're just built that way. If you want to know how they can hover and watch prey underwater, it's because they're NOT really underwater. Their nostrils are actually slightly higher than most of their body, so it looks like they're underwater, but really their eyes and noses are above the water.

Answer 3

crocodiles actually have special flaps in the the front of the throat that keeps water from coming in or out for that matter so if a crocodile ever bites your leg just push on the flap and he'll let go.
hope i answered your question

Answer 4

Actually they can't because their nose are is one the upper part of the water so they breath but their body's are below the water they can absorb more air than humans to go deeply below the water they go also in the water because they will die if their skins are dry oh reptiles skin are sensitive in the sun if they stay below the sun

About the crocodiles **** you ******* asshole try to surf at the net

Answer 5

they slow their heart rate and lay very still most of the time. if you evr get the chance to see this either on film or in person you'll notice that they move as little as possible, and since they have a naturally slower system than ours , they need to breath less anyway.