What characteristic does the gig antelope share with its ancestors the antelope and the elephant?

The gig antelope shares the characteristic of being a herbivore with its ancestors, the antelope and the elephant. All three species primarily consume plant materials to sustain themselves. Additionally, they exhibit adaptations for grazing and browsing, such as specialized teeth and digestive systems suited for processing fibrous plant matter. This shared dietary trait highlights their evolutionary connection within the broader context of herbivorous mammals.