This Week: Ancient water = ancient habitat?
In the News: Sinkholes: When the ground collapses!
The image depicts a cross-section of mouse skeletal muscle magnified 60 times. Fibers in the tissue are fluorescently stained for protein synthesis. The green stain outlines individual fibers. The bright pink/purple fibers are newly growing muscle fibers showing protein synthesis rates of these fiber types for the first time. Images like this allow researchers to [...]