The discovery of bonebeds containing thousands of hadrosaurids strongly suggests that these dinosaurs lived in groups rather than being solitary animals. Bonebeds are formed from the accumulation of the remains of multiple individuals in the same area, often indicating catastrophic events like floods or mass mortality events. The presence of numerous individuals of the same species in such bonebeds implies that hadrosaurids exhibited gregarious behavior, congregating in herds or groups during their lives. This behavior likely had various benefits, including protection from predators, mating opportunities, and possibly shared foraging strategies.
