Pygmy marmosets communicate through whistles and twitters, but when hostile they emit a frightening cry that's audible to peers but inaudible to humans.
Technicians have set out into US national parks to document the natural noises of the park, as well as ambient human noise, an audible invasion that may be stressful to wildlife.
Technicians have set out into US national parks to document the natural noises of the park, as well as ambient human noise, an audible invasion that may be stressful to wildlife.
Technicians have set out into US national parks to document the natural noises of the park, as well as ambient human noise, an audible invasion that may be stressful to wildlife.
Pygmy marmosets communicate through whistles and twitters, but when hostile they emit a frightening cry that's audible to peers but inaudible to humans.
Pygmy marmosets communicate through whistles and twitters, but when hostile they emit a frightening cry that's audible to peers but inaudible to humans.
Pygmy marmosets communicate through whistles and twitters, but when hostile they emit a frightening cry that's audible to peers but inaudible to humans.