Ancient bees gathered pollen in two ways

Were ancient bees specialists, devoting their pollen-collecting attentions to very specific plant partners? Or were they generalists, buzzing around to collect pollen from a variety of flowers in their midst? Researchers who've studied an ancient lineage of bees now say in the Cell Press journal Current Biology on November 12 that the answer to both questions is yes. Bees living some 50 million years ago simultaneously relied on both strategies in foraging for pollen.