"The Unbeatable Squirrel Girl" is a comic book series featuring Doreen Green, a young superhero with the ability to communicate with squirrels and enhanced agility. She is known for her upbeat personality and her unique power to defeat formidable villains, including Thanos and Doctor Doom, often using her intelligence and humor rather than brute force. The series, created by Ryan North and Erica Henderson, first debuted in 2015. It combines elements of comedy and adventure, appealing to a wide audience. Doreen balances her superhero life with her college studies, showcasing themes of friendship, resilience, and the importance of being true to oneself.