Short story about underwater aliens with 2-stage life cycle and 3 kinds of "gametes" who combine to make adults
30124
Story about machines generating energy with parallel universes, endangering ours
142581
Short story describing an alien invasion where humans are the invaders
95235
Story about a sentient star system, in a 50s or early 60s anthology
6618
Short story about astronauts landing on a planet of shapeshifters
124035
Short Story - Next stage of human evolution has a language they all understand. Protagonist is father who can only read it
127615
Short story about humans serving as hosts to the larval stage of insects
67118
Short story about alien invasion with a twist.
42867
Short story about an astronaut that has to harvest/collect the body fluids of an alien for a panacea
24884
Story ident : Solar powered aliens
67000
Old short story with multidimensional being/monster
119716
Short story with aliens who hear their own thoughts as god-like voices
18011
Sci-Fi short story that involved time travel and a couple who keep losing each other
155397
sci-fi book where a meteorite gives 3 different kinds of telepathic powers to people who then vie for control
97483
Looking for book: contact with aliens, five different races, mismatched claws, biological imperative to breed
67407
Trying to identify a very old short story about aliens colonizing human bodies
142054
Seeking title / author of a story about alien first contact with Earth
139418
Looking for a short story about an insect-like alien captured by humans on its own planet