Researchers calculated the optimal search strategy for organisms that employ run-and-tumble motion when looking for a food's odor. They determined that the chemotaxis demonstrated by E. coli closely ...

In the classic “run-and-tumble” movement pattern, bacteria swim forward (“run”) in one direction and then stop to rotate and reorient themselves in a new direction (“tumble”). During experiments where ...

Tokyo, Japan – The aroma of a favorite dessert can tempt almost anyone to follow the scent. By moving in the direction of increasing smell, one can often locate the desired confection. It turns out ...