January 16, 2018 by Liam O'Brien
Monarch butterflies are often found in huge clusters on eucalyptus trees. Why do they seemingly prefer these non-natives?
January 03, 2018 by Tony Iwane
A reader found a huge spider. Is it a tarantula?
January 02, 2018 by Zach St. George
The most destructive wildfire season in California history has nearly ended. Will this be the new pattern — or can we bring fire back on our own terms?
January 02, 2018 by Kim Todd
Coyotes have returned to San Francisco. Now, for the first time, ecologists are gaining insight into how and where these urban predators live.
January 02, 2018 by Victoria Schlesinger
Big Break, near the confluence of the San Joaquin and Sacramento Rivers, is a hotspot for birds. A great way to see them is by kayak.