Tipping points are the death of ecosystems. So scientists watch as warning signs gradually worsen until an ecosystem reaches the point of no return, when animal populations suddenly collapse. While ...

The uplift of East Africa during the Miocene epoch dramatically transformed the region's climate and ecosystems, promoting the expansion of grassland and reshaping habitats for mammals and early ...

St. Joseph High School’s seventh grade science students recently turned in three-dimensional models of six different ecosystems. The models were biomes, a large geographical region on Earth ...