It's no coincidence that the earthworm's slender shape makes it perfect for weaving through narrow tunnels. Evolution molds the shapes of living creatures according to the benefits they offer. At the ...

Researchers have discovered how acids on the surface of bacteria give these microscopic organisms their characteristic "rod" ...

Researchers show how the rod-shaped bacteria Bacillus subtilis maintains its precise diameter while growing end to end. The slender, rod-shaped Bacillus subtilis is one of the best-studied bacteria in ...