Mouse

A mouse was a species of mammal native to Earth and possibly other parts of the universe.

In 1879, Rose-the-Cat piloted the TARDIS to Paris, France, where she found a mouse. (COMIC: A Rose by Any Other Name)

When the Tenth Doctor landed in Paws 'N' Claws, they defeated Cybermen. However when he and Rose went to defeat the Cybermice (converted mice), a mouse which looked like the Tenth Doctor was already stopping them. (COMIC: Untitled)

On Gallifrey, a mouse was enlarged by during an experiment. The giant-sized mouse ate the Lord President's pet cat and bit the President himself, which resulted in the Rani's expulsion from Gallifrey. (TV: The Mark of the Rani)

Professor George Litefoot had pet mice as a child. (AUDIO: Encore of the Scorchies)

In the year 4000, Froyn and Rhynmal intended to test their new long-range teleportation system by sending two lab mice to Mira. These were later exterminated by Daleks. (TV: The Daleks' Master Plan)

The Fourth Doctor called Leela "mouse" after she inhaled helium and it temporarily changed her voice. (TV: The Robots of Death)

On Skaro, Romana II hinted that a determined mouse could move over a barrier the Fourth Doctor was putting on the way of the Daleks. (TV: Destiny of the Daleks)

Bertram brought his pet mice on board the Karsudan. During his long sleep, the mice multiplied and infested the ship, damaging many of its systems. The cog on the ship fed on the mice. (PROSE: All Snug in Their Beds)

The Fourth (TV: The Talons of Weng-Chiang) and Tenth Doctors (TV: The Doctor's Daughter) occasionally carried a toy mouse, which he used to distract people.

The Ninth Doctor claimed that there was a planet which had talking mice. (PROSE: Winner Takes All)

In Prague, used the time winds to bring a dead mouse back to life and accelerate its evolution by millions of years into a humanoid form, which he planned to use as a new host body for himself, but the Seventh Doctor defeated the Master's plan. (PROSE: Omegamorphosis)

Behind the scenes

 * Jon Pertwee acquired a field mouse as a temporary pet during a break in the location filming for The Mutants at Stone House Farm in Frindsbury, Kent. He named the mouse Solos, after the planet featured in the story.