Some of the longest, most important migrations of species on Earth are happening beneath the surface of the world's rivers ...

Freshwater fish are vanishing from the world’s rivers, with migratory species down 81 percent due to dams, pollution, and ...

The Hudson River flows from its headwaters in the Adirondack Mountains in up-state New York down to New York Harbor and into the Atlantic Ocean. It’s named after Henry Hudson, who explored in 1609 for ...

The Atlantic tarpon migrates hundreds of miles along the US coast but the population has dropped as its mangrove habitats are ...

A new species of Amazonian fish, Pyrrhulina punctata, has been discovered in Peru, revealing previously unknown biodiversity ...

More than 320 species of plants and animals living in Oregon are in need of greater protection, according to the state’s Department of Fish and Wildlife, up from 294 about a decade ago, the last time ...