HALF MOON BAY, Calif. (AP) — Editor's note: This is a photo gallery curated by AP photo editors.

Purple sea urchins are responsible for much of the massive kelp deforestation along California’s coast. These spiky purple balls aren’t the harmless creatures most people encounter in the ...

National Weather Service satellite images show a dramatic, churning cyclone approaching California's coast as parts of ...

A “beautiful” mama sea creature was spotted alongside her baby off the coast of California. On Feb. 27, a northern right ...

Thousands of sea creatures were spotted off California coast, officials said. Getty Images/iStockphoto A group conducting a survey said it was able to experience the “mind blowing” sight of a ...

I traveled five hours on the Amtrak Coast Starlight from Los Angeles to San Luis Obispo. I traveled through California by train in February. One unexpected highlight of my trip was the five-hour ...

A mama northern right whale dolphin was spotted with her calf off the coast of California ... seen leaping out of the water in “amazing” photos, the March 2 post said. Northern right whale ...