Trandoshan

Trandoshans, or T'doshok in Dosh, were large, bipedal reptilian humanoids from the planet of Trandosha (or Dosha). They had sensitive eyes that could see into the infrared range and the ability to regenerate lost limbs—albeit slowly—and were anatomically built heavier and stronger than most humanoids, including Humans. They would also periodically shed their skin. Unlike some other reptilian humanoids, such as the Barabels and the Ssi-ruuk, Trandoshans had no tails. The Trandoshans were a warlike species who allied early with the Empire, taking Wookiees as slaves. A notable Trandoshan was Bossk, who was a longtime enemy of Han Solo, Chewbacca the Wookiee, and Boba Fett, as well as the infamous slaver Pekt.
As a species, they were renowned across the galaxy for great strength. This is evidenced by several members of other species boasting physical prowess and power by having defeated a Trandoshan, either in battle or in a contest of strength.