Blue and Green: Researchers in Norway have spotted a polar bear eating a dolphin for the first time and have suggested that climate change is pushing the species further north in the Arctic region. Effects of warmer climate is making polar bears adapting to other preys that are not usually hunted, according to scientists in Norway, who published their findings in a new study. The team first saw a polar bear eating the carcasses of two white-beaked dolphins in the Norwegian Arctic in spring 2014. During the following...