Feature

Front Matter

Biology

Cat and Mouse on the Web

Fish Nature: Sometimes Shy, Sometimes Bold

Space-Age Metals

Cell-Phone Muffler Squelches Street Noise

Making Use of Mismatched Donor Marrow

Earth Science

Chemistry Computations Earn Nobel Prize

Who’s Been Eating All Those Sea Otters?

Close Calls

Botanical ‘Velcro’ Entraps Hummingbirds