Ants...

Ants fascinate me. An individual ant has a brain the size of... well, the size of an ant's brain. Can't get much smaller than that. But as a group, an ant colony can do some pretty complicated things, including building nests, caring for baby ants, foraging for food, and, in some cases, building leaf bridges, farming aphids, attacking other colonies, etc. It shows that some pretty complex behavior can arise from a group of individuals who follow some pretty simple rules and exchange some pretty simple signals. Kind of like the cells in the human body. The whole is much greater than the sum of its parts. Fearfully and wonderfully made. God is a heck of an engineer (among other things).