Infrared

Infrared was light of a wavelength longer than visible light. It was given off by warm objects. (DW: The Hungry Earth)

A wide variety of species could naturally see infrared, including Silurians (DW: Doctor Who and the Silurians), Vegans (NA: Legacy), V'orrn (EDA: Placebo Effect) and Wrarth Warriors (DWM: The Star Beast).

Other species used artificial methods to see infrared. The Eleventh Doctor had sunglasses which could function as thermal imaging scanners. (DW: The Hungry Earth) The Dalek eyepiece also had an infrared scanner. (DW: Destiny of the Daleks)