Doctor Leonardo Suárez, who practices general medicine with an emphasis on general, obstetric and gynecological surgery, talks to us about some of the most commonly seen diseases in his local population in Otavalo, Ecuador, as well as some of their causes.

Meet the volunteers of Faithful Friend Patrol, a dog rescue organization in Otavalo, Ecuador.

Crew members of Greenpeace's ship, the Rainbow Warrior III, from Spain and Argentina tell us a bit about their duties and give us a tour of some areas of the ship where they are performed.

Learn from the girls of "Sin Desperdicio" (Without Waste) about their new campaign for cleaning up the environment. It's called "Not one more bag."

Martin, Eduardo and Karla travel around Chubut province in Argentina, learning about and filming each area’s fauna. Here, they are on the Valdes Peninsula to learn about this precious protected area. The Patagonian peninsula is a breeding ground for elephant seals and penguins. It’s like a big maternity ward each spring!

New York has the Hudson; Paris has the Seine; London has the Thames. Rivers were important in the building of these cities: they were commercial routes and also a source of food. Aterciopelados (in English, literally “The Velvety Ones”) the well-known Colombian band, remind us of the importance of our rivers with the title song of their socially conscious album Río.

Medical student Patricia Martí tells us about the study she is conducting in the village of Adícora. The study is a look at the incidence of skin problems caused by sun exposure in this town where many people work outdoors, including quite a few fishermen.