Measuring line transects in tallgrass prairies

Plant sampling amidst the grass

Studying land use change in Wanzhou, China

Bison at Neal Smith Wildlife Refuge, Prairie City, Iowa

Okavango Delta, Botswana

Sod harvesting in Wanzhou, China

Households in Wolong, China

Spring in Neal Smith Wildlife Refuge

Households near Yichang, China

Asking for a pay raise in Wolong Nature Reserve, China

Thaba Seka, Lesotho

Two-year-old panda in the Wolong Nature Reserve Panda Breeding Center

"The Scream," Yellowstone National Park