Earless ghost swift moths become “invisible” to echolocating bats by forming mating clusters close (less than half a meter) above vegetation and effectively blending into the clutter of echoes that the bat receives from the leaves and stems around them.

Like the cat that swallowed the canary. Not only do you feel a little bit guilty 'cause you can't stop, but you feel pretty good, too.

Compensation for optical surface misfigure was provided by a phase conjugating mirror to construct a phase conjugated transmitter subsystem.

[…] which makes the tragical ends of noble persons more favorably resented by compassionate readers.