@Ionus,
When I wrote ET, I did not mean the movie icon but extra-terrestrials in general. Let's say they were bear like but sentient.
Alien does look . . . if you ever figured out what it actually was . . . like it would taste terrible. I saw the film with my ex-husband, a science fiction enthusiast. We credited the director, the then unknown to me Ridley Scott, with the look of the monster which included images of the T-rex and spiders. I remember saying to my ex, "He (that is, the director) really understands fear." I have since learned that the look of the monster was a collaboration.
Anyway, my question was loosely based on having made it 2/3rds of the way through the Helliconia trilogy by Brian Aldiss. The first two books were terrific but the third might as well have been a pulp romance. I never finished it.
Aldiss wrote a great ecological novel in the first two Helliconia books. In it, he posited a planet with dual suns in which there are two sentient races, one humanoid and one somewhat bovine. The bovine race gains ascendency when the cold sun is dominant while the humans are more powerful during the warm phase. I could be wrong: the books are quite old and I read them long ago.