How do sea stars monitor and coordinate hundreds of tube feet whilst moving around — and how do they do this without a brain?

For decades, confirming Alzheimer’s disease has meant invasive spinal taps, expensive brain scans, and, too often, waiting until memory loss is unmistakable. Now researchers and regulators are ...

Selecting the healthiest embryo is one of the most important steps in in‑vitro fertilization (IVF), yet it remains one of the ...