If you walk through a forest and look down, you might think you’re stepping on dead leaves, twigs and soil. In reality, you’re walking over a vast underground patchwork of fungal filaments, supporting ...

Brazil President Luiz Inácio Lula da Silva visited former Argentina President Cristina Fernández de Kirchner at her home ...

A wildfire in a wilderness area of central California exploded in size as dry, hot weather Thursday raised the fire risk for large ...