Filming for #BBCEarth... I was in a small wooden boat on the kinabatangan river, Borneo. We heard a loud call and when I looked up I spotted this large male proboscis monkey honking, a territorial call showing us who was boss. His large nose helps to resonate the call far and wide - attracting females and intimidating other males (and film crews) #EarthOnLocation #BBCEarth #Wildlife #Monkey #Primate #SexualAttraction #Nose
Male Proboscis monkey (Nasalis larvatus), Kinabatangan River, Sabah, Borneo.