The usual questions. How did those the very first water-holding frogs figure out how to do that, so fast, before the first summer? How did they get it right the first time, or how many thousands of generations died while doing the lab-work? How did they mate with likeminded frogs? How did they train their children so fast and without language, while we have trouble showing ours how to use a fork and knife?
There is an alternate explanation I find more satisfying.
O LORD, how manifold are your works!
In wisdom have you made them all;
the earth is full of your creatures