They watched Jurassic Fight Club.
The only possible result of watching such horrifyingly idiotic trash is endless depression and development of suicidal ideas. Over time, this progresses until they simply lose the will to live. As dinosaurs, the effects of watching Jurassic Fight Club are magnified, as they are the most directly victimized group. The only reason we are able to survive watching Jurassic Fight Club is because our life forces have been strengthened by watching David Attenborough's content.