The NCAA changed its participation policy for transgender athletes on Thursday, limiting competition in women's sports to athletes who were assigned female at birth.

Tundra as a biome is defined by its lack of ... “Growing season temperatures are the primary control on tree line elevation and latitude,” explained Greg Pederson, a US Geological Survey ...

transforming areas of alpine tundra into forest. However, Pederson cautioned that factors such as precipitation, wind, and snowpack would influence the density, distribution, and composition of these ...