Are There More Crows and Ravens in the Bay Area These Days?
Corvids move noisily into new areas. Are they arriving, or returning?
Ask the Naturalist
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?
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?
Remember When Octopuses Thrived in the San Francisco Bay
Do octopus live in the Bay? Marine biologist Andrew Cohen's answer may surprise you.
Why Do You Find So Many Monarchs on Eucalyptus Trees?
Monarch butterflies are often found in huge clusters on eucalyptus trees. Why do they seemingly prefer these non-natives?
Ask the Naturalist: Look a Big Spider in the Mouth to Tell if It’s a Tarantula or Not
A reader found a huge spider. Is it a tarantula?
Which Bay Area Salamanders Drop Their Tails?
How does a salamander drop its tail, and how many times can it do it?
Ask the Naturalist: What Is This Gelatinous Mass on the Juncus Leaves?
An Ask the Naturalist reader finds some egg-looking things on Juncus leaves. What are they?
Ask the Naturalist: Is This a Turkey’s Tail Mushroom? How Do I Tell?
What kind of mushroom is this?
