April 9, 2009 2:44 pm Triceratops Roams Museum Hallways A 9-foot Triceratops roams the halls of the LA Natural History Museum. US & World Videos 0:43 LA County releases sterile mosquitoes as warmer weather nears 3:43 Despite encampment's clearing, safety concerns linger at UCLA 3:11 Ryan Gosling skips darker film roles because of Eva Mendes and daughters 2:15 Prince William and Kate Middleton ‘going through hell,' friend claims (report) 8:01 Lady Gaga's outfit changes, Rihanna's bold looks and more iconic Met Gala moments