05 Jul Science Pills: Amazon river dolphin risks extinction if Brazil moratorium not renewed
The Amazon river dolphin (Inia geoffrensis) or boto, already classified as “endangered” since 2018 by the IUCN, the International Union for Conservation of Nature, is now coming under even more serious threat across Brazil and Latin America. An estimated population in the low tens of thousands is thought to exist in the wild, though counting the animals accurately in the Amazon’s murky streams is challenging. Like other river dolphins, the boto communicates with variable whistle tones. Occupying the Amazon and Orinoco river basins, which cut across the northern half of the South American continent, these freshwater mammals were historically abundant, and are protected today by Brazilian law; it is illegal to kill them. But for years, poachers have targeted the dolphins, using their fatty blubber as bait to catch a carnivorous catfish called piracatinga, which is drawn to the scent of rotting flesh.
A lapsed moratorium protecting the Amazon river dolphin is up for renewal, but the Bolsonaro administration has delayed acting, even as scientists warn it could mean the freshwater mammal’s extinction.