where did Noah get the penguins and polar bears?
How did Noah build a wooden boat that was so big, bigger than the biggest wooden sailing ship ever built, in a shape that would have caused it to crack into a million pieces as soon as the waves lifted it off the ground?
How did the fresh water creatures survive being mixed into a salty ocean?
These topics have been covered MANY times by creationists. If you did some research you will find that there ARE answers to these things.