Dissection

Dissection was a scientific procedure in which a lifeform's body was cut into pieces to learn its anatomy. If it was done while the subject was alive, it could be called vivisection. (TV: The Categories of Life)

When the scientist Bryant Anderson dissected a Dalek creature, which remained alive throughout the process, he discovered irrefutable evidence that the Daleks were descended from human stock. (PROSE: We are the Daleks!)

In 1889, the Torchwood Institute dissected Jonathan Smith, believing him to be the Doctor. (COMIC: Final Sacrifice)

In 2006, Rose Tyler feared that the newly regenerated Tenth Doctor would be dissected if taken to a hospital. (TV: The Christmas Invasion)

When Sarah Jane Smith was young, rats were dissected for school biology lessons. By 2007, rat dissections hadn't been performed in schools for years. (TV: School Reunion)

In 2012, the Ninth Doctor warned Adam Mitchell that he would be dissected if he showed his infospike to anyone. (TV: The Long Game)

In the early 2020s, Ryan Sinclair dissected a bird, infected with Praxeus. (TV: Praxeus)

The Boneless dissected humans to learn how to exist in three-dimensional space. (TV: Flatline)

On Wengrol, Fomal wanted to dissect the First Doctor, believing him to be a new kind of mutated Yend. (PROSE: The Sons of the Crab)

On Vortis, the Menoptera attempted to dissect the First Doctor, believing him to be one of the Atlanteans who had been attacking them. (PROSE: The Lost Ones)

Lord Haxtl wanted to have the Second Doctor, Jamie and Victoria dissected to discover the secret of invincibility he believed they possessed. (PROSE: Lords of the Galaxy)

After the Combined Galactic Resistance had recovered the Dalek that the Twelfth Doctor would name "Rusty", they attempted to dissect the unit only for it to begin screaming in pain, allowing humanity to discover that the Daleks were sentient creatures. (TV: Into the Dalek, PROSE: Dalek: The Astounding Untold History of the Greatest Enemies of the Universe)