One of the curious things in the world of birds is why most species come in only one color form, while others come in many. We can start with the western tanager. Adult males all look the same. Adult ...

The greatest diversity of life is not counted in the number of species, says an evolutionary geneticist, but in the diversity of interactions among them. He says it's often unclear if the outcome of ...

Gene editing may hold the key to rescuing endangered species—not just by preserving them, but by restoring their lost genetic diversity using DNA from museum specimens and related species. Scientists ...

Plant cells host a variety of organelles segregated into distinct functional groups. Among those organelles, the nucleus, ...