In the mid-’80s, scientists discovered a giant fungus growing in Michigan’s Upper Peninsula. Now, researchers have found the organism is at least 2,500 years old. And the secret to the mushroom’s longevity might be a genome that’s highly resistant to mutation, the team reports today in the journal Proceedings of the Royal Society B. The discovery could help researchers figure out why cancer genomes are so unstable.

Forest Recycler
In 1983, Johann Bruhn planted red pines in the forest. Wi