Naturalist’s Notebook: Freshwater Jellyfish Invade California Lakes and Ponds
Native to China, Craspedacusta sowerbii is found in freshwater lakes and ponds on every continent.
Wildlife
Not Just a Pretty Face — the Banana Slug is One of the Weirdest Animals On Earth
The banana slugs: a fascinating group from an evolutionary standpoint, and a very very unusual one from a human viewpoint.
Tarantulas Emerge to Wander the Landscape in the Autumn
Coyotes and predatory wasps can't stop the Bay Area blond tarantula from searching out mates in the autumn.
Bizarre Banana Slug Facts
Our guide to help you win banana slug trivia night.
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.
