Nina investigates why humans live on planet Earth and discovers what life would be like on Mars.

Originally released by BBC, 2013. Streaming video file encoded with permission for digital streaming by Infobase on November 17, 2016.

Meet the Neurons (0:55); --Why Don't We Live on Other Planets? (2:11); -- Senses Experiment (3:43); -- Could We Live on Neptune? (2:40); -- Living on a Windy Planet (2:12); -- Summary: Why Don't We Live on Other Planets? (0:44); -- Credits: Living On Earth—Nina & the Neurons: Earth Explorers (1:43); .