Elizabeth PennisiFor decades a ghastly facial cancer has been decimating Tasmanian devils. Spreading from animal to animal when the stocky, raccoon-size marsupials bite each other, the transmissible cancer has killed up to 80% of the devils in Tasmania, their only home for millennia.
Some researchers saw extinction as inevitable. Now, a new study in Science, suggests the remaining 15,000 devils have reached a détente with the cancer.
Until recently it was spreading exponentially, like the pandemic coronavirus among humans in many parts of the world. But geneticists calculate that each infected devil now transmits tumor cells to just one—or fewer—other devils.