Lil Bub, officially Lil BUB (June 21, 2011 – December 1, 2019), was an American celebrity cat known for her unique physical appearance. Her photos were first posted to Tumblr in November 2011, before being taken off after being featured on the social news website Reddit. "Lil Bub" on Facebook has over three million likes. Lil Bub starred in Lil Bub & Friendz, a documentary that premiered at the Tribeca Film Festival on April 18, 2013, and won the Tribeca Online Festival Best Feature Film. Lil Bub was the runt of her litter born to a feral mother. She was born with several genetic mutations, had to be bottle-fed, and had difficulty being adopted. Lil Bub had an extreme form of feline dwarfism that caused her limbs and lower jaw to be quite small in comparison to the rest of her body. The shortened lower jaw meant that, among other things, she could not retain her tongue within her mouth. Her owner, Mike Bridavsky, adopted her when his friends asked him to give her a home. When Bridavsky first picked her up, he said "Hey, Bub!"