The history of a forest might be measured by the trunks and branches looming overhead. But for some researchers at Michigan State University, a forest's future lies in what's growing under their feet.

Most of us learn, somewhere along the way, that death is a line. A moment. The heart stops, and that’s the end of the story.

We rely on the money we raise through ticket sales, commercial activities and fundraising to deliver our arts and learning programme. It forms more than 60% of our income. Show your support by making ...