This last-chance habitat urgently needs protection.” The South Llano Springs moss is an aquatic moss that grows on submerged rocks. Its interwoven mats are blue-green when shaded and yellow-green when ...

Pyramid pigtoe (Pleurobema rubrum) is a freshwater mussel found in Alabama, Arkansas, Kentucky, Louisiana, Mississippi, Ohio, Oklahoma, Tennessee and Virginia. It has lost nearly 80% of its range.

Marimo, more commonly known as moss balls, make a fun addition to your indoor garden and are a popular feature in aquariums.

Opinions expressed by Forbes Contributors are their own. GrrlScientist writes about evolution, ecology, behavior and health. If you keep a freshwater aquarium or freshwater shrimps, then you may ...