In the animated television series Looney Tunes featured a martian named Marvin the Martian who resembled a little green man. There was a film titled Mars Attacks which featured a race of martians with visible craniums and heads which resembled human skulls.
Searches for martians
There are Mars rovers sent by the National Aeronautics and Space Administration (NASA) agency to Mars to search for life. Water samples have been found on Mars which may support the theory that there may have been life on Mars at one time. However, it is most unlikely that there is any life on Mars today.