World’s oldest African penguin fights skin cancer

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At age 40, Tess is currently the world’s oldest living African Penguin. The joy of growing old is accompanied by inevitable ailments in penguins, too — last month, Tess was diagnosed with skin cancer. Her vets at Colorado’s Pueblo Zoo realized they could treat the exotic bird, giving Tess another superlative: first African Penguin to undergo cancer treatment.

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