Key Points The Pantanal, the biggest tropical wetland out there, is burning up with wildfires. These fires are killing off tons of rare animals, including jaguars and giant anteaters. So far, more than 7,000 square miles of the wetland have been scorched, causing huge environmental damage. The Pantanal's rich biodiversity is in big trouble, with many species at risk of disappearing. This is the worst wildfire season Brazil has seen since they started keeping track in 1998. Conservationists and scientists are super…