A small piece of human brain tissue was placed inside newborn mice. Over the following months, it did something researchers had rarely been able to observe so directly. The human tissue grew. It ...

Few mammals have the ability to regenerate a severed spinal cord and heal other severe injuries without scarring, but a diminutive rodent from Africa could hold the key to a medical revolution. Monica ...

The native Australian rodent Pseudomys fumeus, named smoky mouse for its colour, was already fighting off extinction when the 2019–20 bushfire season hit. The Black Summer bushfires, which torched ...