A Hidden Partnership

Beneath every forest lies a hidden network of fungi linking tree roots together. Here is what scientists know, and what they're still debating.

Walk through a forest, and you only see half of it. Much of the action happens underground.

Tree roots are wrapped in fine threads of fungi. These partnerships are called mycorrhizae.

The fungi help trees collect water and nutrients from the soil, such as phosphorus and nitrogen.

In return, the trees share some of the sugars they make from sunlight. It is a trade that benefits both.

Keep reading: there are 4 more chapters

Next: The 'Wood Wide Web'

You might also enjoy