Hedgehog
From Tardis Wiki, the free Doctor Who reference
Hedgehogs were a species from Earth.
Sarah Jane Smith once said that she looked like a startled hedgehog with her hair up. (AUDIO: The Ghosts of N-Space)
In 1989, Alistair Gordon Lethbridge-Stewart was aware that Sonic the Hedgehog was a blue hedgehog. (PROSE: Business Unusual)
