15.But unlike butterflies, if Turritopsis get wounded or if times get tough, they can morph backwards, reverting to their immature polyp form until conditions improve.
16.As a result, Skylab's successor, the International Space Station, ended up reverting back to sponge baths, with astronauts cleaning themselves using rinse-free soap and shampoo.
20.After many pauses and many trials of other subjects, Elizabeth could not help reverting once more to the first, and saying, I am astonished at his intimacy with Mr. Bingley!