Two new howler monkey species discovered in Amazon rainforest after 84 years

Scientists have identified two previously unknown howler monkey species in the Amazon rainforest through genetic research, 84 years after the last new species was described. The study highlights the region’s hidden biodiversity and the threat posed by deforestation. Separately, camera traps captured a newly identified Mato Grosso red howler monkey crossing an artificial canopy bridge designed to reconnect fragmented forest habitats.