Future Human

A bizarre species of future Humans which inhabit the Earth about five million years in the future. At some point, they abandoned their moribund planet and left for the Sirius System.

Biology
The future descendants of humanity are strange-looking creatures with radioactive blood kept charged by broadcasting machines. They have neither mouth nor nostrils, as they communicate solely by telepathy and require neither food nor oxygen to survive. They also have no need to sleep, as the broadcast energy prevents them from getting tired. Their bodies are relatively small, due to the absence of a digestive tract. They have two lidless black eyes, four arms terminating in eight digits, and their legs are jointed in a way that allows them to bend forwards or backwards. Instead of hair, they have two dozen antennae protruding from their heads, which serve to pick up both telepathic communication and the broadcast energy that keeps them alive. They can live for ten thousand years.

Appearances

 * "Time's Mausoleum", by Neil R. Jones (1933)