The roughskin dogfish, scientifically known as Centroscymnus owstonii, is not a freshwater species. This shark is primarily ...

Nearly a quarter of the world's freshwater species are at risk of extinction due to a multitude of threats, according to new ...

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 ...

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 ...

Researchers found that 24 percent of freshwater species––including dragonflies, fish, and crustaceans––are vulnerable, endangered, or critically endangered due to multiple environmental ...

WASHINGTON, Jan 8 (Reuters) - Freshwater environments cover about 1% of Earth's surface while accounting for more than 10% of known species. Like many marine and terrestrial ecosystems ...