(The) Last Man on Earth may refer to: 1  The Last Man on Earth (1924 film), a silent comedy film.  The Last Man on Earth (1964 film), an Italian science fiction starring Vincent Price.
Lizard is the symbol of dreams, the dreamer and shadowy depths of other realities we perceive that is not on the physical plane of existence. Other keywords I use for this creature are greater-awareness, camouflage, relaxation, day-dreaming, goals, desires and visions.
The snake is the symbol of the creative power of wisdom. The aegis represents its protective power. The helmet and spear relate to the fact that wisdom and strategy is the key to victory in war. It's a Christian image, though there is some use of pagan symbols.