Feature

Sponges and Sinks and Rags, Oh My!

It Takes Two Compasses to Fly Right

Biology

El Nino Is Bashful about Revealing Its Age

New Chemical Filters Block Laser Bursts

Astronomy

An Illuminating Partnership for Squid

Slew of Distant Galaxies Tells a Cosmic Tale

The Trouble with Condoms

Back Matter

Banned Pollutant’s Legacy: Lower IQs

Uses of Stereotypes