Repeated cloning from a single mouse failed after 58 generations. Researchers say harmful DNA changes are to blame.

A small brown mouse has just done something no mammal has ever done before: give birth on Earth after spending part of its reproductive cycle in orbit. It sounds like a quirky space trivia item, but ...

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, ...

Study in mice offers insights into the brain circuitry underlying certain types of reward-based choices. Researchers identified distinct groups of brain cells activated when animals anticipate a ...

Aubrey de Grey describes his plan to get combinations of promising aging damage-repair approaches. Aging is accumulated molecular and cellular damage from metabolism, leading to pathology. He ...

In a lab at the University of Yamanashi, one mouse line kept coming back in a form that looked almost unchanged. Researchers began with a single female donor and used her cells to make a clone, then ...