Two new Amazon howler monkey species found after 84 years; camera traps capture bridge crossing

The Amazon rainforest has revealed two more of its biological secrets, with scientists identifying two previously unrecognised species of howler monkeys through groundbreaking genetic research.

The discovery adds to the known biodiversity of the world's largest tropical rainforest, while raising concerns about the survival of these primates as deforestation continues to destroy their habitats.The study, led by researchers from the University of Salford and international collaborators, analysed the genomes of 11 howler monkey species found across South and Central America.