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

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.

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

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

Monarch butterflies are often found in huge clusters on eucalyptus trees. Why do they seemingly prefer these non-natives?

A reader found a huge spider. Is it a tarantula?