Trying to figure out where that confiscated rhino horn came from? Is that guitar made from a piece of endangered tropical hardwood? You might find the answers to your questions at the US Fish & Wildlife Service's Forensic Lab in Ashland, Oregon, the only one like it in the world.
In the Geo Quiz, we're searching for the Doyenne. La Doyenne means "the oldest". It's also the French nickname for one of Europe's most famous bike races. The race starts and ends in a Belgian city we want you to to name.
Cacao plantations have been a mainstay for farmers in the Mexican state of Chiapas. But farmers have started to abandon these crops for the more lucrative sugar cane and oil palm plants. Murray Carpenter reports.