Short story about humans on a hostile planet, genetically engineering their offspring gradually over generations, to be able to survive on it
50686
Story about suicidal breeding of aggressive next generation on generation ship
111401
Short sci-fi story about Earth blockaded by other human colonies
9327
Short story where the Earth has been kept inside a force field for millennia
116754
Looking for a story about the end of life on earth
101007
Short story from many years ago: the ancient, brilliant, cruel race was Earthlings
72409
Looking for name of sci-fi short story: all non-human life on earth eliminated to preserve equilibrium
126418
Story about encounter with hostile aliens
99907
Looking for a story about a post-apocalyptic earth where an AI learns about humanity
150807
40s/50s short story about a mutant family with psi powers
82943
Book where humans on another planets are cannibals
97147
Short story about aliens who invade Earth and are baffled by the climate
126528
Short story about an endless space ship
157242
Short story about scientists who discover a way to end the world
124035
Short Story - Next stage of human evolution has a language they all understand. Protagonist is father who can only read it
87201
Short story or novel from the 1970s or before about two warring alien tribes
113064
Short story about people who lived only a few days
113857
A mutation-themed short story from the 60s or 70s