Polar bears are being exposed to more pathogens as the climate warms
Blood samples from the bears more frequently show antibodies to viruses, bacteria and parasites
As climate change brings pathogens into new environments, one of the world’s southernmost population of polar bears — and the animals they hunt — are encountering more than they used to.
Hidden Ocean 2016: The Chukchi Borderlands/OER/NOAA, Flickr (CC BY 2.0)