Have you ever heard of the smelly bird that has claws on its wings? Yes, such an animal does exist—and it’s called the hoatzin. This bird is known for its rotten scent, thanks to its hardworking ...

A party from the University of Pennsylvania set sail for the jungles of the upper Amazon, to snare the almost mythical “hoatzin.” The party is headed by Rodolphe M. de Schauenesse, son of a French ...