October 22, 2015
In this Thursday, Oct. 1, 2015 photo, an elephant crosses a road in Hwange National Park, Zimbabwe, about 700 kilometres south west of Harare. Cancer is much less common in elephants than in humans, even though the big beasts' bodies have many more cells. That's a paradox known among scientists, and now researchers think they may have an explanation.
Stories this photo appears in:

Why Is Elephant Cancer Rare? Answer Might Help Treat Humans
Cancer is much less common in elephants than in humans, even though the big beasts' bodies have many more cells. That's a paradox known among scientists, and now researchers think they may have an explanation — one they say might someday lead to new ways to protect people from cancer.