The Venus flytrap, like all carnivorous plants, had no use for its insect-trapping function unless it also had an insect-digesting function. And vice versa.
Get acquainted with another irreducibly complex molecular motor. This one is a master at unfolding proteins. Its method is ingenious.
There’s no conspiracy here, just life’s astonishing solution for admitting water into cells through “gates” while keeping lethal acidifying proteins out.
From back when I was a sophomore taking biochemistry, one particular event stands out in my memory, perhaps because it was such an odd thing.
At a conference, says Miller, “I removed two parts from a mousetrap (leaving just the base, spring, and hammer), and used that 3-part device as a functional tie-clip.”