Though he has since become one of Star Wars‘ most popular characters thanks to the success of The Mandalorian, Grogu still has quite a mysterious background. Grogu, also known to many as “Baby Yoda,” was a surprise addition to the story of The Mandalorian, where he made his debut at the end of the Star Wars TV show’s first episode. With his inclusion in the story kept a secret up until that point, Grogu’s first appearance was even more remarkable, and he’s quickly become a beloved Star Wars character ever since then.

https://screenrant.com/grogu-origin-species-force-powers-timeline-explained/