The monarch butterfly population in the eastern United States has declined sharply — an estimated 80% loss since the 1990s. Among the factors contributing to the decline: Loss of habitat, exposure to ...

A decade ago, a fence reaching up to 12 feet high — and buried 2 feet below the surface — was put in along the 241 Toll Road.

More dead marine mammals have washed ashore in Ventura County as the unprecedented bloom of harmful algae in Southern California appears to be worsening. Sky5 footage on Friday showed a deceased ...

According to one app for nature observers, it's the most commonly seen creature in California: the western fence lizard. Why?

Sea creatures keep showing up dead in California waters, and researchers may have an answer as to why. It has to do with ...

Of the four whales that have washed up on Orange and Los Angeles county beaches this year, two had high levels of domoic acid ...