Low mutation rate as a survival strategy
https://www.nytimes.com/2019/01/08/science/fungus-michigan-mutation.html
Giant Fungus Is Older, Bigger and Rarely Mutates – The New York Times
The scientists first reported finding it in 1992: a giant mushroom that weighed as much as a blue whale and sprawled across more than 30 acres of forest in Michigan’s upper peninsula.It wasn’t …