Service organization Daughters of the American Revolution is calling on its board to pass a bylaw that would exclude biological men from joining, even if they identify as transgender women. DAR boasts ...

Biological diversity, often shortened to biodiversity, is the variation of life at all levels of biological organization, referring not only to the sum total of life forms across an area, but also to ...

Integrative levels of organization allow researchers to describe ... to populations is most relevant (Figure 1). When units of biological material are put together, the properties of the new ...

The framework of biological stoichiometry stitches together layers of biological organization from genes to ecosystems by connecting element cycling to the biochemical and physiological properties ...

Research on how and why living things, at all levels of biological organization--from genes and genomes to populations and species--change over time. Research that characterizes and classifies ...

At the Center for Biological Diversity, we believe that the welfare of human beings is deeply linked to nature — to the existence in our world of a vast diversity of wild animals and plants. Because ...