Question

The most primitive hominid discovered to date?

1) may have hunted dinosaurs.
2) lived 1.2 million years ago.
3) closely resembled a chimpanzee.
4) walked on two legs.
5) had a relatively large brain.

Answer 1

Sahelanthropus tchadensis is the most primitive hominid discovered to date, with a mix of evolved and primitive traits, and a small brain similar to that of a chimpanzee. Australopithecus also walked bipedally and had a slightly larger brain. Neither species hunted dinosaurs, which had become extinct prior to hominids' appearance.

Step-by-step explanation:

The most primitive hominid discovered to date is Sahelanthropus tchadensis, which dates back to nearly seven million years ago.

This species exhibits a mix of primitive and evolved characteristics. Although it has a small cranial capacity similar to that of a chimpanzee, only 350 cubic centimeters, indicating a small brain size, the placement of the foramen magnum suggests it might not have been completely bipedal.

Australopithecus, which evolved about 3.9 million years ago and is known for the famous fossil named Lucy, did walk on two legs and had a slightly larger brain, around 500 cubic centimeters. However, none of these early hominids hunted dinosaurs, as the dinosaurs became extinct long before hominids appeared.