1950s 1960s 1970s 1980s 1990s 2000s 2010s alien amphibious arthropod avian biomechanical cgi china dinosaur fish godzilla greece human humanoid hybrid japan live mammal maneater marine mecha mechanical mexico mutant natural newzealand plant prehistoric prop reptile robot shapeshifter starwars stopmotion subterranean suit supernatural superscience tentacles transformers uk ultraman usa water