World's oldest penguin undergoes cancer radiation
Friday, December 12, 2014 - 08:30
in Biology & Nature
A toddler on Tuesday peered through thick glass as Tess – the world's oldest African penguin, representing an endangered species set to vanish in the child's lifetime – dove into her pool at the Pueblo Zoo. It was the penguin's first swim since Colorado State University veterinarians used specialized radiation to treat an aggressive form of skin cancer on her face.