Story about aliens firing a weapon at earth only to then realise we evolve quickly
46055
Short sci-fi story: aliens regret setting Earth's destruction in motion
145036
Low budget alien movie about the Earth being cooked
154725
Looking for identification of SF story where humans are the "ancient evil"
99907
Looking for a story about a post-apocalyptic earth where an AI learns about humanity
37150
Sci-fi novella where colonists begin to de-evolve - Mankind has reached limits of its evolutionary cycle
38561
Aliens want to destroy all dogs because they are seen as next step in evolution beyond Man
109897
Short story: rocket fuel which oxidizes iron destroys life on earth
41450
What was this story about alien food?
87201
Short story or novel from the 1970s or before about two warring alien tribes
6002
Story (series) identification: Mind controlling satellite, a return to Earth, and two warring alien species
5178
Novel with an alien rabbit invasion
76615
A story about Earth in far future with a civilization centered around a huge tree
98805
Trying to identify a short story in which aliens turned an entire city block into a spaceship
53517
Trying to Remember a Book that explored evolution of Dinosaurs to intelligence and then encountering humans
60620
Dead earth , aliens revive human
155646
I need help identifying a short science fiction story about cancer as human evolution
15303
novel identification: alien scientists must save their civilization from future destruction