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WHAT IN THE WORLD IS THIS? 
Bleeding Tooth Fungus
 More weird stuff from the forests at Norris: bleeding tooth fungus (Hydnellum peckii).
This bizarre-looking growth is actually the fruiting body of a type of mycorrhizal fungus.
These fungi associate with the roots of a plant, providing the plant with increased uptake
of minerals and water. The relationship isn’t one-sided, though; mycorrhizal fungi receive
a steady source of sugars produced in leaves via photosynthesis.
Photo courtesy of Curtis Akin