The aquatic bladderwort lacks the charm of a rose, a lily, cherry blossoms, or many other plants you can think of, but it has something else to recommend it.
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.
A correspondent sends along this remarkable nature video from the BBC and asks a good question.
Mother-of-pearl, or nacre, is not only a beautiful substance for jewelry and ceramics; it is a remarkable material.