In the new paper published in Ecology and Evolution, researchers describe how they were observing small groups of critically endangered diademed sifaka lemurs (Propithecus diadema) at Betampona ...

In Tsinjoarivo, Irwin and his colleagues set up a behavioral study of the critically endangered diademed sifaka (Propithecus diadema), one of the largest living species of lemurs, distinguished by ...