Just like the days of Noah and Lot were, so will be the days before the coming of the Lord, page-130

Elephants need between 100-200 litres of water a day and about 100 kgs of food to survive. Two elephants would need at least 73,000 litres of fresh water to survive for a year. More than a large swimming pool. Maybe the ark had a large indoor pool. That's not counting all the other animals.