The roughskin dogfish, scientifically known as Centroscymnus owstonii, is not a freshwater species. This shark is primarily found in marine environments, specifically inhabiting deep waters over ...

Numerous shark species are capable of inflicting mortal ... thriving in both saltwater and freshwater environments. Their robust build, reaching lengths of 7 to 11.5 feet and weighing up to ...

Freshwater shark: Alone among the sharks ... To date at least ten specimens of this new species, whose gaping mouth inspired the name "megamouth," have been found. Lowest note a shark can hear ...

Freshwater ecosystems cover less than 1% of Earth's surface, but are vital for life on this planet. New research reveals that ...

However, it turns out that a unique shark species, the bull shark, tends to swim outside the box—and right into the freshwater of the Mississippi River. Could bull sharks really swim that far ...

Freshwater shark: Alone among the sharks ... These are the only two specimens ever found of this new species, whose gaping mouth inspired the name "megamouth." Lowest note a shark can hear ...

Nearly a quarter of freshwater species face extinction due to habitat destruction, pollution, and water overuse.