Giant otters, river sentinels, now listed as threatened migratory species

Giant otters, river sentinels, now listed as threatened migratory species

With evidence that the giant river otter is in an increasingly perilous state, delegates to the United Nations Convention on the Conservation of Migratory Species (CMS) listed it as an animal requiring urgent conservation action at its March 2026 meeting in Campo Grande, Brazil. The giant otter (Pteronura brasiliensis), endemic to tropical river systems in South America, once lived east of the Andes mountains from northern Venezuela to Argentina…