PUERTO NARINO, Colombia — A flash of pink breaks the muddy surface of the Amazon River as scientists and veterinarians, waist-deep in the warm current, patiently work a mesh net around a pod of river ...
PUERTO CARREÑO, Colombia — The scientists had traveled down the muddy Orinoco River for hours, their single-engine boat hemmed in by rocks the size of small mountains, when the lead biologist let out ...
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