This is where you make the mistake of believing a person with limited knowledge.
The immediate ancestors of humans were members of the genus
Australopithecus
. The
australopithecines
(or australopiths)
were intermediate between apes and people. Both australopithecines and humans are biologically similar enough to be classified as members of the same biological tribe--the
Hominini
. All people, past and present, along with the australopithecines are
hominins
.
We share in common not only the fact that we evolved from the same ape ancestors in Africa but that both genera are habitually
bipedal
, or two-footed, upright walkers. By comparison, chimpanzees, bonobos, and gorillas are primarily
quadrupedal
, or four-footed.
Fossils Reveal the Story of Our Relatives
In the 8 million years or so since the
earliest ancestors of humans diverged from the apes, at least a dozen humanlike species, called hominids, have lived on Earth. And this list is getting longer. As scientists discover new fossils, the hominid family tree grows new branches.
But fossils are often difficult to categorize neatly as one species or another. Like all creatures, no two individual hominids were alike. And over the millions of years most of the species existed, hominids changed; they evolved; some diverged and became new species.
This is the story of our distant relatives, as told by the fossil record.
https://www.google.com/search?sxsrf=ALeKk01ec1kxmFc4neg4PMUEJMdQCiM0jw:1601762396501&ei=XPR4X_SQHoS2gweFoqPQCQ&q=How+did+hominids+develop&oq=How+did+hominids+develop&gs_lcp=CgZwc3ktYWIQDDIECCMQJzICCAAyBggAEAUQHjIGCAAQCBAeOgQIABBHOgcIIxCwAhAnOgQIABANUJqeGljrsBpghc4aaABwAngAgAGGAYgB7wGSAQMwLjKYAQCgAQGqAQdnd3Mtd2l6yAEIwAEB&sclient=psy-ab&ved=0ahUKEwj0rqH1tZnsAhUE2-AKHQXRCJoQ4dUDCA0