April 08, 2013 by Terry Knight
We’ve thought about doing a piece on Clear Lake for a long time: It’s a wildlife magnet just over two …
April 04, 2013 by Dhyana Levey
San Francisco wants to rebuild Alamo Square’s irrigation system, but historian says leaks are natural springs.
April 03, 2013 by Michael Ellis
Barnacles are hermaphroditic – they contain both male and female sex organs. You’re thinking, “Well, they always have a date on Saturday night.” No, it’s a really bad idea to self-fertilize: Inbreeding results in little genetic diversity. Worms, slugs, snails – slow-moving animals with low rates of encounter – are all hermaphroditic. And you could not get any slower than an adult barnacle!
April 02, 2013 by Heather Mack
Limits on commercial dog walkers in the Presidio has some nature lovers questioning: Should they be allowed at all?