Researchers are reporting that an existing drug can roll back key signs of Alzheimer’s disease in mice, restoring memory performance and easing brain pathology in animals that already show symptoms.

A female mouse from China's Tiangong Space Station has given birth to 28 pups across three healthy litters since her return, each exceeding normal sizes and adapting faster to Earth.

In a lab far from the woolly mammoth’s icy plains, researchers from Colossal Biosciences have successfully brought a tiny “woolly mouse” to life. Here’s what it could mean for de-extinction. A tiny, ...