To camouflage themselves on different plants, two forms of this mimic insect bear different patterns on their backs.

The third annual fundraiser brought its biggest crowd yet of over 800, all of whom left with a shrub to plant.

A trail camera has captured the incredible moment between a mountain lion and her three cubs in the South Bay area.

Few things are more satisfying than learning how to use a dichotomous key and run a prescribed burn. On a drizzly day in late March, eighteen lucky middle-schoolers from Laytonville got to do ...

High above the rugged cliffs of California, a massive shadow glides silently, wings stretching nearly ten feet wide. This is ...

A group of tree lovers 125 years ago gathered beneath the leafy canopies of a grove of giant redwood trees in the Santa Cruz ...

Once thought resistant to invasion, California's deserts are losing native plants to aggressive weedy species like Saharan mustard. New research shows its spread is disrupting biodiversity and ...

New research led by UC Santa Cruz will strengthen understanding of which traits set tomato plants up to be grown successfully ...

Lorayne Meltzer has lived along the Gulf of California for 30 years. As an ecologist and director of a binational field ...

The Washington Trucking Associations said it’s unfair for the state to allow certain exemptions of Advanced Clean Trucks ...

After passing in the Washington House of Representatives April 14 with amendments, the extended producer responsibility bill ...

In the past week, there have been more than 50 dead and dying dolphins found along the L.A. County coast. Experts say it's due to a neurotoxin called domoic acid.