Scientists are beginning to unravel the mystery of how Monarch butterflies manage to navigate thousands of miles across Canada and the U.S. to pine groves in Mexico where they winter. It really is an astonishing feat, made more so by the fact that none of the butterflies which make the trip had ever made it before.
It turns out that these insects have a tiny molecular clock in their brains that works in tandem with molecular light sensors that allows them to use the sun as a kind of compass. The sun's position is constantly changing, of course, which is where the clock comes in. As it cycles through a series of chemical reactions it causes the light sensors to adjust for the changing position of the sun so that the butterflies don't get lost.
This marvelous mechanism is, Darwinians assure us, a product of nothing more than random mutation and natural selection (RM&NS), and no one should doubt the ability of blind, purposeless forces and processes to produce it. If you're skeptical that such prodigies are possible by mere chance you can consult the decision of Judge John Jones in Kitzmiller v. Dover for reassurance.
Now, if they could only explain how RM&NS actually created that clock/compass mechanism in the butterfly's brain in the first place, that would really be something. And while they're at it maybe they can tell us how the Monarch caterpillar completely dissociates into a mush during its pupal stage and then reassembles the pulp into an adult Monarch in the process of metamorphosis. I know I'm supposed to have faith that this is just one of those things that natural selection can accomplish without any intelligent input from a Creator, but even though I squeeze my eyes tight shut and try real hard to believe, I just can't get myself to do it. Maybe I need a therapy session with Judge Jones.