The Bible said that Noah loaded the entire ark with two (or seven) from each species within a 24 hour day. This would have required him to have taken into the vessel, classified and stored 480 species per second.
Noah took his wife, three sons, and three daughters-in-law into the ark. Each person would have had to sort, house, look after, feed, water, and remove the excrement from about 5 million animals each day.
In their book, The Genesis Flood, Doctors Morris and Whitcomb say that only 35,000 individual animals needed to go on the ark. John Woodmorappe, the author of Noah's Ark: A Feasibility Study, believes that an even smaller number of animals would have been transported upon the ark. Woodmorappe explains that the word "specie" is not equivalent to the "created kinds" of the Genesis account, so as few as 2,000 animals may have been required on the ark.
As many as 50,000 animals (including creatures that may now be extinct) could have fit on board the ark. These would not have needed to be the largest or even adult specimens.
With only a few very large animals, such as the dinosaur or the elephant, and these could be represented by young ones. "Assuming the average animal to be about the size of a sheep and using a railroad car for comparison, we note that the average double-deck stock car can accommodate 240 sheep. Thus, three trains hauling 69 cars each would have ample space to carry the 50,000 animals, filling only 37 percent of the ark. This would leave an additional 361 cars or enough to make 5 trains of 72 cars each to carry all of the food and baggage plus Noah's family of eight people.
