I was walking my puppy in my neighborhood earlier last week when I noticed an usual growth on the side of a large, dormant ...

An optical illusion is a visual phenomenon where the brain misinterprets what the eyes perceive, creating a false or misleading impression of reality. This occurs because the brain processes visual ...

When you see mushrooms or other fungi growing out of the trunk of a tree, pay attention. It’s a sign that the wood inside the tree is decaying. “It’s something you want to have a professional look at ...

While admiring large heritage trees in Marin, you may see signs of plants in a death spiral, their canopies standing bare against the sky. It’s easy to point a finger at sudden oak death as a culprit ...

DEAR NEIL: One of my five oak trees is having this problem and I’m wondering what I should do. I hope it’s not a disease that could spread to my other trees. Thanks for any advice you can give me.