Life

Life was the state of being alive.

History
Life existed on the planet Olympus before anywhere else in the universe. However, the Olympian Prometheus stole the life spores and released them, spreading life across the rest of the universe. (COMIC: The Life Bringer!) This was known as the First Proliferation, described as "life's opening lunges from impossible planets circling frozen stars and black suns". (PROSE: The Knight, The Fool and The Dead)

The Seventh Doctor remarked that life would defeat Gavrok. (TV: Delta and the Bannermen)

When Rusty the Dalek witnessed a new star be born from the remains of one that the Daleks had previously destroyed, it became convinced that its kind's perpetual was futile as "life returns, life prevails". (TV: Into the Dalek)

Mickey Smith (PROSE:, , etc.) thought that Clive Finch had "tirelessly" dedicated his life to searching for the truth about the Doctor, with his reward being death. (PROSE: )

In early 2006, Mickey mentioned his website that the Slitheen had attempted to end all life on the planet. (PROSE: )

On Who is Doctor Who? in late 2006, Mickey recalled that when Rose returned a few months prior, she had said that she had to get back to Ninth Doctor as it was a "life and death" situation. (PROSE: )

Historians who had been allowed access to the "Monster Vaults" of the databanks in the Doctor's TARDIS observed that the heads of the Abzorbaloffs' absorbed victims remained alive and conscious within the Abzorbaloff's digestive tract and only when it had completely drained their brains were the heads fully assimilated into its "fleshy corpulence". (PROSE: The Monster Vault)