Bizarre Banana Slug Facts
Our guide to help you win banana slug trivia night.
Wildlife
Fall Almanac: An Illustrated Guide to Northern California Nature
Illustrator Jane Kim and the California Center for Natural History share six species to watch for this fall.
What Do River Otters Do When the River Runs Dry in a Drought?
A reader asks about the fate of a family of river otters living in Coyote Creek, which dried up in many places in the drought.
Do Dragonflies Tease Turtles?
A reader saw a dragonfly seemingly tapping a turtle on the head in the Sunol Regional Wilderness. Any ideas what's happening?
“Plain” Cabbage White Butterflies are Anything but Ordinary
A commonplace butterfly with an interesting history in the United States becomes the subject of a citizen science initiative to study climate change.
Naturalist’s Notebook: How An Antlion Pit Works
Antlions trap their prey in steep pits.
Seals Make a Fur-ious Comeback in the Bay Area
Despite the declining global populations of this vulnerable species, northern fur seals are thriving on the Bay Area's Farallon Islands.
Does the Moon Phase Affect Frog Calls?
A Bay Nature reader wonders if frogs are less afraid of predators when it's a new moon.
Meet the Urban Osprey
Do these large, wild, fearsome fish predators prefer our built-up shoreline bristling with apartments, cargo ships, and manufacturing equipment? And what does it mean if they do?
