Aspects of this topic are discussed in the following places at Britannica.
It is difficult to say how the wide variety of early hominins were interrelated. Moreover, although these ancient forms were clearly members of the same larger group, discerning exactly how any of them may have been connected to later species is problematic because of incomplete fossil evidence or different interpretations of the same evidence. Homo may have originated as early...
Relationship to
...they also take fewer strides to cover a given distance than a smaller animal would. Indeed, H. rudolfensis (2.4–1.6 mya), H. ergaster (1.9–1.7 mya), and later species of Homo, including Homo sapiens (100 kya), are notably taller and heavier than Australopithecus and Paranthropus. There is less size difference between the sexes in Homo...
a paleoanthropological site in northern Malawi known for the discovery of a jawbone of an ancient human (genus Homo) dating to 2.4 million years ago (mya). It is similar to specimens dating to between 1.9 and 1.8 mya from Koobi Fora, Kenya. The Uraha Hill specimen is one of the oldest occurrences of the genus Homo, and it fills the geographical gap between sites of...
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