The butterfly mimicry cluster is a good example. As the cistrons leave one body and enter the next, as they board sperm or egg for the journey into the next generation, they are likely to find that the little vessel contains their close neighbours of the previous voyage, old shipmates with whom they sailed on the long odyssey from the bodies of distant ancestors.

Offer the PCB waste to transporters, disposers, or commercial storers of PCB waste who have not received an EPA identification number.

We're narrowing the distance between the two versions of the bill.  The distance between the lowest and next gear on my bicycle is annoying.

There seems to be nothing new in elephant trickdom. All the elaborate, purportedly new, stunts are merely variations of four basic maneuvers: the leg-stand; the lay-down; the sit-up; and the whirl-around.