Story where humans colonize planet, and then revert to less "aggressive" form
37150
Sci-fi novella where colonists begin to de-evolve - Mankind has reached limits of its evolutionary cycle
76530
Searching after a science fiction book/series about Galactic war with a weaker Human/Alien Alliance vs. Another hostile alien race
88570
Sci-fi book where humanity is rebuilt on a new planet after being wiped out
110453
80s-90s Sci Fi book about a transformed Earth invaded by aliens
131436
Story about tricking the earth empire into saving hopeless aliens
139069
Short story where humans receive false distress signal, lured into galactic federation
101007
Short story from many years ago: the ancient, brilliant, cruel race was Earthlings
139418
Looking for a short story about an insect-like alien captured by humans on its own planet
26391
SF Story about human adapting to alien environment
17094
Identity novel, short story or book series... slower than light space battles, time dilation and boardings, several planets
45357
Science fiction/fantasy novel about a god returning to Earth to reclaim his powers
76448
Novel about a replica of earth where history happened slightly differently after the ~1940s
6002
Story (series) identification: Mind controlling satellite, a return to Earth, and two warring alien species
29564
Trying to remember a book about a human male travelling to alien planet
24884
Story ident : Solar powered aliens
86853
Novel about alien conquerers who conduct games to select servants
67118
Short story about alien invasion with a twist.