A fisherman in northern Cambodia hooked what researchers say is the world’s largest freshwater fish — a giant stingray that scientists know relatively little about. The fisherman, 42, caught the ...

The world has seven continents, but do you know the largest freshwater fish in each? These creatures show the incredible diversity of Earth's inland waters. Let's get amazed as we look at these ...

BANGKOK (AP) — Scientists say the world’s largest recorded freshwater fish, a giant stingray, has been caught in the Mekong River in Cambodia. Wonders of the Mekong, a joint Cambodian-U.S. research ...

A small fossil reveals that the largest freshwater fish, Otophysans, emerged in the sea, not in rivers, changing the ...

Killed by algae blooms and dwindling from dams and droughts, the largest freshwater fish in North America is at risk in California. Today, wildlife officials took the first major step toward ...

The largest freshwater fish in North America, which was once abundant in California’s major rivers and San Francisco Bay, has declined in numbers to a point that state officials will consider whether ...

By Stefan Lovgren Southeast Asia’s Mekong River is one of the world’s most diverse and productive freshwater ecosystems, home ...

Stay up-to-date with free briefings on topics that matter to all Californians. Subscribe to CalMatters today for nonprofit news in your inbox. Killed by algae blooms and dwindling from dams and ...