[[A drawing of a cluster of bacteria.]]

What?


STAPHYLOCOCCUS AUREUS
 is evolving!

[[The same bacteria.]]
...

[[The (seemingly) same bacteria.]]

STAPHYLOCOCCUS AUREUS
 evolved into 
METHICILLIN-RESISTANT STAPHYLOCOCCUS AUREUS!

Off screen: Aww, crap.

{{Title text: Biologists play reverse Pokémon, trying to avoid putting any one team member on the front lines long enough for the experience to cause evolution.}}