Feature

[Photograph]: Double Prop Blades

Texan Offers Kinder Way to Kill Crabs

Equator Is Egg-Shaped

Defense and State Partners

Nature’s Clocks Unaffected

Books of the Week

Chemical for Tooth Decay

Sensitivity to Pain Rises When Senses Are Inactive

Nature Ramblings: Viva El Catfish!

Alaskan TB Declines

No Place for Elderly in Industrial Plants

[Photograph]: The Fat and the Lean of It