Reaching up to 23 feet [7 m] in length, crocodiles are reptiles, agile both on land and in water. In water they can attain great speed because of the flattened, paddlelike shape of their tails.
और उनके लिए दो, यहाँ तक कि तीन घंटे भी पानी के नीचे रहना असामान्य बात नहीं है ।