1960s-70s short story: Shapechanging alien invasion scouts on Earth
6599
Story about shapeshifting aliens trying to invade Earth, thwarted by biodiversity
126418
Story about encounter with hostile aliens
791
SF Short Story: alien apes invade during nuclear war
91065
Short story, space traveller crashes on planet, planet can replicate water, man eventually transforms into alien
44499
Story about astronauts who set off an alien warning beacon on the moon (or Mars?)
12720
Short Sci-fi story about a sentient planet/creature that exists to seed the universe with life
97540
Looking for a Pre-1975, young adult, sci-fi, colored circle dimension crossing
8206
70s/80s book: Cold-war Psychic superweapons
64745
Short story where an alien convinces a human to exchange consciousness with it
150807
40s/50s short story about a mutant family with psi powers
102346
Old Budrys(?) end-of-world/alien invasion of NYC story
58511
Story ID, 30+ years old, (Cannibal?) aliens viewed through portal having a picnic
139069
Short story where humans receive false distress signal, lured into galactic federation
4259
Trying to identify a short sci-fi story about a human that is "resurrected" by malignant aliens
67407
Trying to identify a very old short story about aliens colonizing human bodies
113857
A mutation-themed short story from the 60s or 70s
95235
Story about a sentient star system, in a 50s or early 60s anthology