Bacteria are way smarter than we give them credit for.
No, I'm not talking about "brain smarts." Bacteria don't have neurons.
I'm referring to "chemical smarts": the ability to make, break down or gobble up whatever compound they want. Even if they've never been exposed to it before.
Scientists have found a superbug — hidden 1,000 feet underground in a cave — which is resistant to 70 percent of antibiotics and can totally inactivate many of them.