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Coots take off from the Delta near Big Break Regional Shoreline. Read about seeing the Delta's birds by kayak in the January-March issue of Bay Nature. | Photo by Lee Jaffe

Nature News

If I Pull Invasive Ivy Down from Trees, Does it Hurt the Ecosystem?

A reader wonders: should I pull out creeping ivy, or has it created its own ecosystem with plants and animals that rely on it?

How Do You Identify Small Brown Moths?

A reader finds a small brown moth, the type you regularly see under porchlights. Where do you begin to identify it?

After a Fire, Fast-Growing Flowers Lock in a Long-Term Recovery

We’re used to thinking about how wildfires change the soil for plants. But a UC Berkeley researcher wants to turn the relationship around and ask how the plants that spring up after a fire could lock-in long-term soil recovery.

Ask the Naturalist: What Are These Mysterious Tiny “Eggs”?

A reader finds what looks like pomegranate seeds at the base of her maple tree. Are they eggs? Galls? Or something else?

When Octopuses Thrived in the San Francisco Bay

Do octopus live in the Bay? Marine biologist Andrew Cohen’s answer may surprise you.

2018 Youth Engagement Local Hero: Sandra Corzantes

San Mateo County Park Ranger Sandra Corzantes has won Bay Nature’s 2018 Youth Engagement award.

Bay Nature