I have noticed many parallels between science-fiction and fantasy/ horror. Some have been brought to my attention, others I noticed myself. I will list some in a table format.
SCIENCE-FICTION FANTASY/ HORROR
The Borg (Star Trek universe) Zombies
Animalistic Mutants and Aliens Were-wolves (and other were-beasts)
Psionics (untapped mental abilities) Magic
Energy Beings (aliens) Ghosts/ Poltergeists/ Spirits
Elder Races (aliens) Gods
I am sure there are many others, but these are the ones I could think of off the top of my head.