Sufiyan Khatri learned to make the dyes for the block-print textiles from his grandfather. But he likes to experiment with color and design: "Whenever I get the time, I do some innovation in our work."
A farm worker collects cucumbers in a greenhouse in Russia. Mac Callaham, a research ecologist at the USDA Forest Service, says William the Worm likely met its fate in "a greenhouse scenario."
Andrey Rudakov/Bloomberg via Getty Images
This is what's called a "specimen lot" — a large mason jar holding smaller vials of parasitic worms gathered by a researcher in 1927. The Smithsonian collection has more than 120,000 specimen lots.