Are Polar Bears Altruistic or Just Bad At Math?
Polar bear mothers are known to adopt and raise cubs from non-related litters. Why do they make a multi-year commitment to do it?
Wreath-Making in National Parks? In Mexico, Yes
Mexico created its national parks system in the 1930s. Today, hundreds of thousands of people live, and work, within its boundaries.
Plant of the Month: Cork
Why is cork so strongly associated with bottle stoppers? The answer goes back centuries.
Can Sustainable Travel in the Amazon Help Reduce Forest Fires?
A rainforest evangelist hopes that Brazil’s 55-million year old jungle can survive 21st century human impact.
This Island Is Closed for Maintenance
The Faroe Islands owe their untouched nature to their remote location and stormy climate. And to a weekend closure.
How Portland Became a Hipster Utopia
How did Portland, Oregon become a hipster haven? While other cities declined in the 60s and 70s, Portland looked at what they did and planned the opposite.
Maybe Earthworms Aren’t So Great For Soil After All
Earthworms are often portrayed as beneficial to the environment, but in North America's temperate forests, they are a disaster in action.
DIY Weather Forecasting
Are there better options for weather forecasting than educated guessing?
Passengers Long Gone
Martha, last of the passenger pigeons.