Firstly, this Question is already BOOBY TRAPPED because it was asked under the assumption that Noah had to take 1 pair of every SPECIES which is false.
Noah didn’t take 1 of every SPECIES, he took 1 of each KIND.
(There is a massive difference as you will soon see)
SPECIES is every unique BRAND of creature.
- Labs
- Husky
- Pit bull
- yorkie
- shih tzu
All of the above are different species of DOG, but they share the same FAMILY (Canine)
So because Noah only needed 1 of each KIND of animal, this drastically reduced the number of creatures that Noah needed to take onto the ark.
- Dog Kind
- Cat Kind
- Bird Kind
- Etc
** The different variety of creatures is found within the Genetic makeup of each kind.
With Crayons, if you mix RED and BLUE — you get something NEW.
Same concept applies with animals. Mix dog X with dog Y, you get dog Z