75 percent of the 650 birds that nest in North America migrate. Research new and old sheds light on how birds know where to go and how to get there.
What might seem like a haphazard assemblage of forest debris belies a very complicated interior design.
As long as they aren’t poisoned or eaten, sea anemones just keep on keeping on. But how?
They haven’t always been here, but they are now.
There are 10,000-plus species of birds in the world, about 1,100 species in the United States, and 350 or so in the greater Bay Area, so there is great variability in nests. But the basic purpose of any nest is … Read more
Do mushrooms require a certain kind of substrate?
Where do turtles go in the winter and summer? —Alma, Sebastopol I am assuming you are referring to our only native freshwater turtle—the western pond turtle—which you might see basking in the sun and then quickly kerplunking right into the … Read more
S.I. insularis lives only on an island in the middle of the Bay.
The world was not always so colorful.
Worms, always on the hunt for just the right humidity and temperature, are picky creatures.