A datavore was a creature with the ability to ingest information like food, feeding on knowledge.

The Seventh Doctor speculated that the Process was a datavore when, in its attack on his ship, it ate the TARDIS manual and left other books unharmed. It also fed on the mental energy of the Time Scaphe crew. (PROSE: Cat's Cradle: Time's Crucible)

Krllxk was a datavore, but inorganic and artificially created. (PROSE: Time of Your Life)

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