This week, we learned …
… what happens when 26,000 stinkbugs invade your home. And they will. Read of the week!

Photograph by Katja Schulz, courtesy Wikimedia. CC-BY-2.0
Could a cold winter threaten the stinkbugs?
… how urban leopards improve human health.

Photograph by Steve Winter, National Geographic
Use our idea set to find nature in your own urban area.
… what happens when a centuries-old cultural tradition (onsen) clashes with 21st-century sustainability (geothermal power).

Sokokura, from the series Seven Hot Springs of Hakone (Hakone shichiyu zue) by Hiroshige, courtesy Museum of Fine Arts Boston
… the six must-have elements of project-based learning.

Photograph by Lynn Johnson, National Geographic
Check out a few of our favorite project-based learning lessons!
… how birds are changing their tunes (literally) around oil fields.

Photograph by Donna Dewhurst, U.S. Fish and Wildlife Service. Public domain
Track the movement of Savannah sparrows and other North American birds with these gorgeous maps.
… Portugal was responsible for shipping 4.9 million people from West Africa to Brazil. Tourists don’t focus on this—so one tour guide decided to do something about it.

Photograph by Deensel, courtesy Wikimedia. CC-BY-2.0
What was the transatlantic slave trade?
… platypus milk could help combat superbugs.

Photograph by Dr. Philip Bethge, courtesy Wikimedia. CC-BY-SA-4.0,3.0,2.5,2.0,1.0
Platypuses are just one of the species you can rent. But not milk.
… why the Arctic is being “shrubified.”

Photograph by Erika Larsen, National Geographic
… the United States now imports more than half its fruit.

Photograph by Paulette Tavormina, National Geographic
Why are fresh fruits and vegetables part of a healthy diet?
… Runaway Negro Creek may soon become Freedom Creek.

Photograph by Pete Seabolt, courtesy Wikimedia. CC-BY-3.0
What were Negros running away from?
… Finland is the world’s happiest country.

Photograph by George F. Mobley, National Geographic
How does this differ from last year’s list? (Spoiler alert: Not much.)