23ft long in length
for freshwater crocodiles(they like to live near to lakes, rivers., etc..,) and for salt-water crocodiles(they live in sea water and some salty lakes..)..
Not often or for a very long but it has happened and Saltwater Crocidile do.
Crocodiles get water by drinking it from lakes, rivers, and other bodies of water. They can also absorb some water through their skin when they are in the water. Crocodiles are adapted to survive long periods without water by being able to store water in their bodies and being efficient at conserving moisture.
a year
no only salties or salt water crocodiles can swim for a very long time without coming up
Fish, sharks, crocodiles, coral many marine animals.
There are three related species - crocodile, alligator and ghariyal. Crocodiles have active lingual (on tongue) glands that can secrete salt - these glands are present also in alligators but aren't active. That's why crocodiles can live in the ocean where alligators can't survive for long (ghariyal is a purely freshwater species with no such gland at all).Though the crocodiles are poor swimmers, the larget living reptile, called the estuarine crocodile (Crocodylus porosus) can ride sea waves and cross the sea to another nearby land area. They live in mangrove forests or estuaries near the seashore.
Because crocodiles have to have water.
Estuarine Crocodiles and Salt Water Crocodiles!
Reptiles + Water = Crocodiles
Alligators that live in fresh water will have to adapt to saltier water, or move further up rivers. Salt-water crocodiles won't be worried at all by a rise in sea levels.
Some saltwater crocodiles do, but most live in fresh water. Their bodies, like many other animals, have difficulty using water that is too salty. Alligators live specifically in swamps where the water is either fresh or slightly brackish.