A newly found organelle, the hemifusome, helps manage cellular recycling. It may play a role in inherited diseases and open ...

During animal development, cells divide and arrange themselves in a coordinated way, eventually forming the embryo. The cells ...

Organ-on-a-chip systems offer a more accurate, ethical, and scalable alternative to animal testing in drug discovery and ...

Researchers examine how the use of animal testing to identify endocrine-disrupting substances in the EU can be reduced.

Fred Hutch researchers have created a gene-expression map of glial cells of the tiny worm, C. elegans, adding the missing ...

Insulin-producing human pancreas cells can be manufactured with 3D printers, researchers reported at the International Transplant Congress underway in London.

Engineered chip mimics bone marrow and immune system, offering a faster, tailored path for cancer immunotherapy.

Water and air pose completely different challenges to animals on a number of levels.

Activation of neural stem cells or their transplantation into areas of central nervous system injury can lead to regeneration in animal models.

Cells are the fundamental, structural, and functional units of living organisms. Cells are composed of cytoplasm containing various organelles, such as the nucleus, in which the DNA is stored, or ...

John is Ars Technica’s science editor. He has a Bachelor of Arts in Biochemistry from Columbia University, and a Ph.D. in Molecular and Cell Biology from the University of California, Berkeley.