Biology has always been an unruly science. Cells divide when they want to. Genes switch on and off like temperamental lights.

Disorganized collagen in old C-section scars causes abnormal placental attachment in uterus in future pregnancies, not ...

At first glance, it looks like the start of a human pregnancy: A ball-shaped embryo presses into the lining of the uterus ...

Researchers at the Francis Crick Institute and AlveoliX have developed the first human 'lung-on-chip' model using stem cells ...