Final answer:
Diplodocids were herbivorous dinosaurs with evidence such as tooth structure and long necks indicating their feeding strategies of stripping leaves from high vegetation to sustain their large size.
Step-by-step explanation:
The feeding strategies and evidences of diplodocids, a group of long-necked, herbivorous dinosaurs, are a subject of interest among paleontologists.
Diplodocids are believed to have been herbivores, consuming large amounts of plant material. Evidence supporting this includes the structure of their teeth, which are indicative of a diet consisting of leaves and soft vegetation.
Additionally, their long necks suggest a strategy for feeding on high vegetation, allowing them to reach leaves that other herbivores could not. Diplodocids likely used their peg-like teeth to strip leaves off branches rather than chewing. This efficient feeding mechanism would have allowed them to consume the necessary amount of plant material to sustain their massive size.