My wakeful nights are fewer now that my children are growing older. A recent event reminded me of what I am missing. After a tremendously exciting weekend in another state at a family celebration, my young son and I found that our sleep schedules were no longer in sync....

I am frequently astonished by monarch butterflies. Delicate beyond belief, they fly thousands of miles each year from all parts of the continent to settle in the forests of South America. To my delight, their migratory route takes them along a bridge near my home. A few days ago, I was driving on...