Birds nests attract pests and parasites, like mites and lice. In Mexico, some birds have identified a way to keep the pests at bay, by taking discarded cigarette butts and weaving them into their nests. It remains to be seen, though, whether there are negative impacts on the birds as well.
As Americans hit the malls this Friday, we asked some folks around the globe about the equivalent to Black Friday in their country. What we found is a many similarities, but not many places that do it quite the American way.
People who smuggle migrants across the US-Mexico border, known as coyotes or polleros, are logging on to Facebook to find more clients. Satisfied customers will post reviews of their coyotes on social media, and connect their relatives to helpful smuggling contacts online.
Aldo Villegas, also known as Bocafloja, is one of the most popular independent rappers in Spanish and, as Mary Stucky reports, over the years he's acquired a huge following in both Mexico and the United States.
President-elect Enrique Pena Nieto has thanked voters for giving his PRI party another chance and has vowed no return to the past. Nieto is about six points ahead of his nearest rival, Andres Manuel Lopez Obrador, who has not admitted defeat.