A plan to alter the Clean Water Act’s definition of wetlands could render vast areas of the state essentially unprotected ...

A Supreme Court ruling placed limits on federal protections for many streams and wetlands. A bill in California’s Legislature ...

Vernal pools are invaluable as biodiversity hotspots. Deer, ducks, turtles, snakes and more use them to rest and replenish.

At stake are seasonal streams, pools and ponds ... California’s hydrology — especially its wet winters and dry summers — ...

They emerge in the late fall to migrate to small, isolated seasonal wetlands, where they lay their eggs in the dry wetland basin. Once winter rains fill the wetlands, the eggs hatch. In 1999 the U.S.