Another Nimravus fossil from Nebraska was described in 1959 by paleontologist Loren Toohey, and comprises a Nimravus skull with saber-teeth embedded into the humerus of another Nimravus, indicating a fatal incidence of intra-specific combat.
A different Nimravus fossil from Nebraska was studied by paleontologist Loren Toohey in 1959, showcasing a Nimravus skull with embedded saber-teeth in the humerus of another Nimravus, indicating a deadly confrontation among members of the same species.