Space-based science fiction series where in each book a character was permanently transformed into a planet's species to find a Macguffin
21252
Series of sci-fi novels: sisters turned into cow like aliens, mother ship full of humans
127337
Late 70s Early 80s Children's SF Book Series
17094
Identity novel, short story or book series... slower than light space battles, time dilation and boardings, several planets
69401
Short SciFi story where humans join and evolve into a kind of multi-creature
37150
Sci-fi novella where colonists begin to de-evolve - Mankind has reached limits of its evolutionary cycle
92004
Looking for old book, SF, artificial world, different zones for different species that visitors "inhabit"
151587
Are there in-universe explanations for how some species' appearances change between series?
26229
Looking for story - post human galactic civilization
144344
Book: Female protagonist transformed into alien on alien planet
139418
Looking for a short story about an insect-like alien captured by humans on its own planet
154388
Sci-Fi book with 4 prison planets
154059
Anthology series with suspended animation and a galaxy-wide empire?
50938
SF novel where body swapping/modification is widespread
31752
CG series about a beast planet
65801
Looking for name of a book-series - Spaceship crashed, Civilization based on Magic rebuilt
66767
Book/series where people were implanted with a power giving stone after birth
98030
Science Fiction novel or novels about starship that becomes a god, colonizes hostile planet