They found a trade-off: insects visited the more mobile flowers mounted on thin stalks more often, but they visited flowers on thick stalks for longer. Medium-length stems received the most visits at ...

Life is not always easy for a bee: Not all plants place their pollen outside. Some flowers have to be set to vibrating before the pollen can get out of their tube-like stamens. Certain bee species ...

It's amusing to watch sleepy people trying not to nod off in their chairs. Their oh-so-heavy eyelids droop while their heads rock forward, only to bob upright again. But plants with nodding clusters ...