Any shapeshifters in your world?

For example, my Iltarans became obsessed with achieving immortality through genetics, after inheriting a treasure trove of science from a long-dead forerunner species, the Reau.

Over generations, they used the Reau’s knowledge to evolve shapeshifting abilities. They believe themselves to be the chosen gods of the galaxy’s coming dark age, even taking on the cephalopod-like appearance of the Reau when interacting with lesser races, leeching off their legacy to reinforce their own godhood. They even moved their capital to an ancient, ruined Reau planet, abandoning their own homeworld to delve deeper into their secrets.

In their quest, the Iltarans failed many times, creating genetic abominations that still languish in the darkest corners of their old territories.

Wbu?