What do you want to know about the natural world? Thanks to donations from readers like you, Bay Nature has teamed up with the naturalists at the California Center for Natural History to answer your questions about the world every other Tuesday. Some questions find their way to naturalist Michael Ellis, whose answers appear in our quarterly print magazine. Email us your questions at atn@baynature.org!

bobcat track

Bay Area Wildlife Tracking 101


What are some of the first things I should look for when tracking animals? —Nick in Fremont I used to think I was a good tracker. I even taught classes, but the more I learned about tracking, the more I … Read more

dancing skunk

Why Do Skunks Dance?


There are two species of skunk in the Bay Area, the familiar striped skunk, and the less common spotted skunk.

robin cup nest

How Do Birds Know How to Build Nests?


There are 10,000-plus species of birds in the world, about 1,100 species in the United States, and 350 or so in the greater Bay Area, so there is great variability in nests. But the basic purpose of any nest is … Read more