I've done this before, but I can't resist it again. Estimates place between 3 million and 30 million animal species on earth.
I’ve calculated that Noah could run constantly at a pace of 489, 580 mph (Four hundred and Eighty Nine Thousand five hundred and eighty miles per hour).
If noah's ark story is true, then it is reasonable to believe that the 99% of species that have become extinct existed then. So, if we pick the mean number between 3 million and 30 million (16 million) and factor that as %1 of the animal species in Noah's time, there would have been 160 000 000 species at that time. Noah collected two of each, or 320 000 000 (three hundred and twenty million) animals on the ark.
The Noah is first mentioned in Genesis when he was supposedly 500 years old, and entered the ark at the age of 600. So, he would have had to build the ark and populate it in 100 years or less.
An elephant of sexual maturity would have to have at least 60 square feet, while a mosquito might only need 1/4 of a square foot. Therefore, the average space needed for the animals would work out to maybe 25 sqare feet. So, 25 square feet times 320 000 000 animals equals a total of 2560000000000 square feet. An average log of 8" diameter by 8' could produce enough lumber to build 20 sqare feet of floor, so Noah would have needed 128 000 000 logs (128 million) to build the ark. If we admit that Noah would have had to sleep for 30 of the 100 years, he would have had to fell and hew 128 000 000 logs, collect 320 000 000 animals and build the ark within 25 550 days (70 years). So, Let's alot an even amout of time to collect animals, collecting lumber, and building the ark. That means Noah would have had to cut down 128 million logs and hew them within 208 days. He would have to fell and hew trees at the rate of 615, 384 per day, or 51, 182 / hour, or, 427 per second. If it took equal time to find a suitable tree, fall and hew it, and return the log to his property, and the average distance of a tree from the building site were 16 miles, he would need to be moving back and forth at a pace of 13 664 (16 * 427 * 2) miles per second, or 163, 680 miles per hour. Noah didn't even have a motor vehicle, but apparently he didn't need one, because he was one hell of a fast runner! In fact, if we consider that an equal amount of time is needed to build the ark, collect the lumber, and to collect the animals, he'd actually have to had run at 489, 540 miles per hour.