- Who
- Troodontids
- What
- ratio
- Where
- ()
Troodontids (formerly Saurornithoidids) were remarkable in having the largest brain-to-body size ratio of all non-avian dinosaurs, possibly making them the most intelligent dinosaurs on a level with the smartest birds. The large brain, huge eyes and grasping hands of these therapods seem to indicate a nocturnal, predatory lifestyle similar to that of small cats.
