Ghost trees

Have you heard of albino redwood trees? There are apparently only about two dozen of them in existence, most of them in California. The location of the rare trees, which can survive as a parasite off a "parent" tree for a century or more, are kept secret to protect them from curious visitors. The highest concentration of the trees seems to be in Henry Cowell Redwood State Park, where at least eight have been identified.

You can listen to a story about these "ghostly redwoods" on an archived episode of Weekend Edition.

Photos via Wikipedia Creative Commons