4. Opisthocomus hoazin
It’s a leaf-eating Amazonian pheasant-like stinkbird, or hoatzin. A prehistoric relic, its unique fermentative organ harbors an impressive array of novel microbes, like that of cows and other ruminants. Instead of a rumen, stinkbirds possess a crop, an enlargement of the esophagus where the fermentation takes place-and the source of the stink. The characterization of its contents will likely lead to the identification of novel microbial enzymes that degrade plant cell walls.
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