South Texas Waltz { Laredo; Once Upon a Time in Laredo}
They'
re having a ball in this South Texas town. But as the border between
the U. S. and Mexico tightens, life will never be the same. BY MIMI
SWARTZ PHOTOGRAPHS BY PENNY DE LOS SANTOS
Leopard Seals { Deadly Beauty}
Big,
fast, sleek, and lethal, leopard seals prowl for penguins along the
edges of Antarctic ice. PHOTOGRAPHS BY PAUL NICKLEN ESSAY BY KIM HEACOXFrom Fins to Wings {
Fins to Wings; A Fin Is a Limb Is a Wing: How Evolution Fashioned its Masterworks}
Scientists
are tracing the steps through which evolution forged its successes.
They' re finding that the same genetic tool kit can build structures
both simple and complex. BY CARL ZIMMER PHOTOGRAPHS BY ROSAMOND PURCELL
It's a Frog's Life
Constant
danger and incredible survival tactics define the colorful world of the
red- eyed tree frog. BY JENNIFER S. HOLLAND PHOTOGRAPHS BY CHRISTIAN
ZIEGLER
PHOTOS , AND COLOUR PICS