When populations of tiny aquatic organisms called cyanobacteria (formerly known as blue-green algae) explode, their toxic ...

Unfortunately, for all their allure, freshwater mussels are the most endangered group of organisms in the United States. Water pollution has wreaked havoc on these clean-water-loving animals, and dams ...

Thousands of fish, crab and dragonfly species could become extinct in the coming decades—and many more could follow. A landmark assessment of the health of nearly 24,000 freshwater species found ...

Can one brave freshwater crab stand up to a pride of lions? Watch as a tiny crab finds itself the center of attention among ...