Jellyfish on the Moon
A long time ago in the early 1990s, NASA sent 2,500 jellyfish into space. At the end of their mission, they returned with 60,000 jellyfish. Jellyfish, like humans, orient themselves using gravity. They found that the jellyfish born in space at zero gravity could no longer tell up from down. They had evolved.
Sometimes I feel that way, too.