This is a great video if you haven't seen this info.

Side note- the Planet of the Apes reference... VK's Gorilla/Ape posts a few weeks ago??? It's an interesting plot.

Planet of the Apes/Film synopsis
Complex sociological themes run through this science-fiction classic about three astronauts marooned on a futuristic planet where apes rule and humans are slaves. The stunned trio discovers that these highly intellectual simians can both walk upright and talk. They have even established a class system and a political structure. The astronauts suddenly find themselves part of a devalued species, trapped and imprisoned by the apes.