Who’s Knocking at Your Back Door in the Night? Probably Raccoons.
Urban raccoons are everywhere. Some evidence suggests they're growing smarter from living in an urban world.
Urban Nature
Can Parks Help Cities Fight Crime?
This article is republished from The Conversation under a Creative Commons license. Read the original article. The relationship between parks and crime remains the subject of debate. Some scholars say parks and other urban green spaces prevent violence. When vacant … Read more
An Update to the App to Identify (Almost) Anything (Almost) Anywhere
If you ever wander around wanting to know the names of plants and animals around you, Seek, a newly rebuilt app from the iNaturalist team at the California Academy of Sciences, now offers instant identifications through the camera view on … Read more
Are Fox Squirrels Replacing Gray Squirrels in California?
A reader notices more fox squirrels and less native western grays.
How Long Do Baby Hummingbirds Stay in a Nest?
How long do hummingbird parents take care of their young?
Caught on Camera: The Presidio’s Coyotes When People Aren’t Around
Most coyotes won’t stay within the Presidio’s relatively safe confines.
Meet a Butterfly Illustrator and His Three-Year Project to Paint the Gossamer Wings
Liam O'Brien went from Broadway actor to butterfly observer ... and then some.
The City Nature Challenge Returns With More People, Places, and Nature
The global citizen science competition returns April 27-May 3.
San Francisco Opens a New Campground at Sunrise Point
Residents and advocates turn to the challenge of keeping it welcome.
