Our final All-Star is a microbe that solved one of the most widespread and difficult groundwater pollution problems in the world. Meet Dehalococcoides ethenogenes, a tiny bacterium with a very big and very specific job: it is the only known organism that can fully detoxify industrial solvents like tetrachloroethylene (PCE) and trichloroethylene (TCE).

When you see a fallen tree in the forest being broken down, you're likely looking at the work of this week's All-Star. White-Rot Fungi, which include well-known species like the Oyster mushroom (Pleurotus ostreatus) and Turkey tail (Trametes versicolor), are the undisputed champions of decomposition. Their unique talent is the ability to break down lignin, the tough, complex polymer that gives wood its rigidity and strength.

Our first two All-Stars were microscopic, but this week's hero is one you can see, grow, and touch. The Indian Mustard plant (Brassica juncea) is a common agricultural crop, but it possesses an uncommon and powerful talent: it's a hyperaccumulator. This means it has the natural ability to absorb and concentrate toxic heavy metals from the soil into its own tissues at levels far higher than other plants.