Badger (species)

The badger was a mammal native to Earth.

The Sixth Doctor and Frobisher encountered a badger called Brock in Astrolabus' realm. (DWM: Once Upon a Time Lord)

After they went extinct, human scientist recreated them in a more humanoid form from their DNA. (NSA: The Pirate Loop)

Behind the scenes
Matt Smith asked for and received a badger hand puppet from Chameleon Circuit's Charlie McDonnell. (CON: Charlie McDonnell - Christmas Presents (badger))