cell walls allow plants to have rigid structures as varied as wood trunks and supple leaves; and vacuoles allow plant cells to change size. What Is the Origin of Chloroplasts? Like mitochondria ...

New research has resulted in the first high-resolution molecular picture of the equine endometrium—the inner lining of the uterus—before and after embryo implantation. This picture, or cell atlas, ...

New research has revealed that birds, reptiles, and mammals have developed complex brain circuits independently, despite sharing a common ancestor. These findings challenge the traditional view of ...