
Sky: Algae Turns Polar Bears Green
The powerful beasts at the country's Higashiyama Zoo and Botanical Gardens are normally white to match their native Arctic habitats. But their changed colour in July after swimming in a pond with an overgrowth of algae. Zoo official Masami Kurobe said that the sight of green polar bears has sparked concern amongst visitors about whether the animals are sick or carrying mold. They changed colour in July after swimming in a pond with an overgrowth of algae. Zoo official Masami Kurobe said that the sight of green polar bears has sparked concern amongst visitors about whether the animals are sick or carrying mold.