Sunday, August 03, 2014 – American paleontologist John Ostrom, in 1969, described the Deinonychus as “having been a fleet-footed, highly predaceous, extremely agile, and very active animal, sensitive to many stimuli and quick in its responses.” That was the beginning of the “dinosaur renaissance,” as Robert Bakker later dubbed it; until then dinosaurs had been lumbering, dull beasts… but no more.

The Yale Alumni Magazine has an incredible article on John and his impact on how modern dinosaurs are characterized.

The Father of the Dinosaur Renaissance