Aa Aa Aa Imagine being able to look back into the ... Sedimentary rock composed of calcium carbonate. Microbial mat: Filamentous microbes forming a cover on a surface, such as lake bottom.

Lake Natron in Tanzania is extremely toxic with high alkalinity, turning animals into stone-like statues. Despite this, the lake is a crucial breeding ground for lesser flamingos, who thrive on ...

Some 80,000 young hatchery steelhead are exploring their new digs in a lake in Whitman County. The Washington Department of Fish and Wildlife released the rainbow trout into Rock Lake near Ewan ...