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"The pattern must have been repeated within the extinct avians and
other theropods, especially the dromaeosaurs and troodontids."
Um . . . so mostly-predatory, flightless, terrestrial
toothed-and-clawed theropods from mainly tropical to subtropical
environs "must" "especially" have had patterns of intelligence similar
to highly omnivorous toothless arboreally-nest-building volant
temperate-zone theropods with complex cooperative multi-year
young-rearing behavior and facing high degrees of resource variability
in both time and space?
I'm not seeing strong parallels here.