>>514669098
Those are the grey sliem drones which are biological clones and made in a vat or a tube. Then they have implanta assembled to them.
The muscles are genetically engineered to be mostly slow twitch muscles with high endurance and they consume mostly sugarlike nutrition. Their whole body is encompassed in a grey silver looking biosuit and they deficate through their skin and it smells like smmonium.
The brain is 4 part with bio-circuits like antenna. They hsve no sould and nervous system mostly pnly allows the biological systems to stay alive.
Eye has a black film that allows night vision, possibly thermal vision. They have four fingers with a suction cub styled head which possibly acts as an interface to the ships.
Theyre used by nordic aliens and others.
These greys you talk about are drones, but other grey small aliens do exist that arent likenthe drones.
The human looking nordic aliens can travel long distances while they stay in hibernation tubes that slow their biological systems, but the aliens telepathically control the greys who wondee alone in the ship and keep it in good shape (my theory based on what ive read)