The Fire-Eater Alien (WildC.A.T.s/Aliens) was born from the body of the superhero Fahrenheit, thus gaining the power to breathe fire instead of spitting acid.
The Tarkatan Xenomorph (Mortal Kombat X) was born from the body of a Tarkatan, and thus has inherited its traits, such as retractable arm blades.
The Venom symbiote (Marvel Comics) inherited the powers of its first known host, Spider-Man.