A potentially new species of armored catfish (pictured) is covered in spines to defend against piranhas. A local guide was about to snack on the fish when scientists intervened and preserved it as a scientific specimen.
Larsen, the RAP director, similarly lost out on a meal, he wrote in his field notes.
"After lugging 97 kilos [214 pounds] of canned sauerkraut deep into the heart of the Surinamese rain forest, I decided it was my duty to catch a fish or two," he wrote.
He promptly caught a striped catfish that, while not new to science, hadn't yet been documented by the expedition.
"The specimen was preserved for the museum collection, leaving my dinner plate free for extra sauerkraut atop my rice that evening."
(See "Pictures: New Armored, Wood-Eating Catfish Found in Amazon.")