The parasites are called trematodes. Two species of the flatworms were discovered in California’s freshwater fish, according ...

The parasites are introduced species from elsewhere, and Americans are perhaps not aware of the risk, the authors wrote.

More than 90% of popular freshwater game fish in Southern California contained an introduced parasite capable of infecting ...

This cormorant somehow manages to gulp down a fish that's even bigger than its head! How do these birds swallow their food ...

Sóc Trăng Province has ramped up efforts to restructure agricultural production, apply high technology, and develop effective ...

Jellyfish are brainless, boneless, eyeless creatures that are 95% water. Despite this simplicity, however, they’ve withstood ...

Invasive fish species wreak havoc on native ecosystems, causing irreversible damage to biodiversity and local economies. This video highlights five of the worst invasive fish that have spread beyond ...

In nature, ecosystems are tightly linked through the flow of organisms, detritus, and nutrients across boundaries arbitrarily imagined by humans. These systems are deeply in tune with seasonal changes ...

Australia’s largest exclusively freshwater fish is the Murray cod (Maccullochella peelii ... Their immense sizes, fascinating adaptations, and ecological importance make them flagship species for ...

representing a fascinating evolutionary adaptation. Giant freshwater stingray. Image via Openverse. Giant freshwater stingrays are opportunistic bottom feeders with a diet primarily consisting of ...

saltwater versus freshwater habitats, the fish life cycle, and adaptations that fish have developed to aid in their survival. Included in the unit plan are five days’ worth of comprehensive ...

These fish exhibit specialized physiological traits, such as antifreeze proteins in their blood, which prevent ice crystals from forming and damaging their tissues. In addition to their physiological ...