Arizona researchers present a unified theory of Alzheimer's disease, linking cellular stress granules to all known symptoms.

Most genes are ancient and shared across species. But a small subset of genes are relative newcomers, spontaneously emerging from stretches of DNA that once encoded nothing at all.

In a Nutshell Turtles show extraordinarily low cancer prevalence — 0–1% compared to 10% in mammals. They likely evolved multiple genetic and cellular defenses, like extra tumor suppressor genes and ...