Ancient penguin stood 5 feet and fossil feathers show brown and gray color, clues to evolution

Giant penguins with no tux? Fossil feathers say so

After 2½-years, Briton becomes first man known to have walked length of Amazon River

Briton first known man to walk Amazon River

For wildlife’s sake, Peruvian officials ban use helicopters at Machu Picchu tourist site

Peru helicopter ban at Machu Picchu protects fauna

Future uncertain for dozens of wild creatures as Bolivia bans animals from circus exhibitions

Bolivia circus ban puts countless animals in limbo

Whether Alaska, the Alps or Route 66, adventurous motorcyclists far from home can rent bikes

Motorcycle rentals for high-adventure touring