Final answer:
Paranthropus robustus was discovered in South Africa and had a robust build and large grinding teeth. Its fossils indicate that it had a vegetarian diet and adapted physical features for chewing.
Step-by-step explanation:
Paranthropus robustus is a species of hominin that existed between 2 and 1.2 million years ago. Its fossils have been found in South Africa, specifically at a site called Kromdraai. Paranthropus robustus had a robust build and large grinding teeth, indicating that it had a coarse and fibrous vegetarian diet. Its physical features, such as a sagittal crest and a flared zygomatic arch, suggest adaptation for the attachment of large chewing muscles.