The internet celebrity cat who brought joy to millions of her fans has died at the age of eight. /VCG Photo

Her owner announced her death on social media today in a post celebrating her life and influence on animal welfare and research for pets with special needs. /VCG Photo

Lil Bub suffered from feline dwarfism and severe bone infection. She had been the subject of a genetic research campaign to better understand gene mutations, and helped raise over 700,000 U.S. dollars for animals in need. /VCG Photo