A few chapters near end have an adventure on a world ruled by centaur-like intelligent aliens - aliens to whom the newly arrived humans are probably food, & whose tools are biological rather mechanical - a snake-like being that serves as rope & is controlled by special patting, balloon-like flying creatures used for keeping watch on things, small beings that can be made to glow to make light by touching a pressure point on their body, scavengers specially trained (or engineered or bred?) for city's garbage disposal, ...
- Arthur Clarke & Gentry Lee's "Rama Revealed": Another novel featuring aliens whose tools are biological rather than mechanical.
Fact sheet.First published: 1953.
Credits: I found this book via ClassicScienceFiction Yahoo group.
Related: Stories of Robert Heinlein.