Ben Goldfarb, an independent environmental journalist, editor, and award-winning fiction writer who covers marine science and wildlife conservation, is the author of Eager: The Surprising, Secret Life of Beavers and Why They Matter.
More than 400 dams are currently proposed for Central America's rivers, but thanks largely to a feisty indigenous resistance—as well as a non-profit—they are still yet to be built.
As beluga sturgeon populations dwindle, poachers have descended on the waters of Oklahoma, searching for the source of next-best caviar: the paddlefish. But conservation officials might have found a way to save the prehistoric-looking creatures from a steady decline—they're selling the caviar themselves.