Actress Hayden Panettiere, who tragically passed away at 36, was remembered for her animal advocacy work, particularly her efforts to end marine life captivity. Panettiere's final campaign with PETA featured her protesting marine parks like SeaWorld, highlighting the suffering of dolphins in captivity. Throughout her life, she actively protested, lobbied, and fundraised for animal welfare causes, earning recognition for her work against the slaughter of dolphins in Japan. Panettiere's legacy includes her dedication to marine conservation and her impactful advocacy efforts for animal rights.