Mexican free-tailed bats emerge from North Campbell Ave. bridge over the Rillito River July 12, 2008. The bats take flight just after sunset to feast on insects.

Also random: Jeff Nelson (Mariners), Paul Quantrill (Yankees) and Mike Stanton (Yankees). It was a big year for AL setup men.

Every day, our brain takes countless fleeting experiences - from walks on the beach to presentations at work - and transforms ...