Urvacryl

The Urvacryl were a species of two-headed eel which inhabited the Lake of Mutations on Skaro. (PROSE: The Dalek Dictionary ^[+]Loading...["The Dalek Dictionary (feature)"])

Davros believed that the Thals were evolutionarily descended from Uvacryl that had evolved to live on land in the Planistavian Age, with the divergence in evolution between the Kaleds and the Thals occurring at a point before life evolved for land. (AUDIO: Corruption ^[+]Loading...["Corruption (audio story)"])