"there are about 30 million species of animals in the world. For so many creatures, a fleet of enormous arks would have been needed." How many species were there at the time of Noah? THAT is the question ... not how many there are today. And how many species can be generated from an example of each animal? We would need some kind of canine to make wolves, cocker spaniels, german shepards ...
Bad move. You don't argue FOR the bible by arguing FOR evolution. Well you could, but many here will not appreciate it =)
"Reproducing according to its kind" IS Bible ...
There is no problem with a Christian differentiating between micro (vertical) and macro (horizontal) evolution ... I see no problem with species adapting, growing thicker hair over time to better combat harsh climate ... but I aint never seen a horse evolve from a whale.