The idea that forest trees can "talk" to each other, share resources with their seedlings -- and even protect them -- through a connective underground web of delicate fungal filaments tickles the imagination.
The evolution of tree roots may have triggered a series of mass extinctions that rocked the Earth's oceans during the Devonian Period over 300 million years ago, according to a study led by scientists at IUPUI, along with colleagues in the United Kingdom.