Dec 11, 2025 · Human evolution, the process by which human beings developed on Earth from now-extinct primates. The only extant members of the human tribe, Hominini, belong to the species Homo …

Dec 11, 2025 · Therefore, it is safe to assume that by about 1.53 mya the uniquely human locomotor and associated cooling systems were basically established. Subsequent alterations in pelvic shape …

Dec 11, 2025 · Human evolution - Emergence, Homo Sapiens, Bipedalism: The relationships among Australopithecus, K. platyops, Paranthropus, and the direct ancestors of Homo are unknown.

Dec 11, 2025 · The large muscle masses of the human lower limbs power our locomotion and enable a person to rise from squatting and sitting postures. Body mass is transferred through the pelvis, …

Dec 11, 2025 · The first tools (hammers, anvils, and primitive cutting tools) made way for the earliest human-made chipped flake tools and core choppers (2.5–2.1 mya). Double-faced hand axes, …

The process by which one type of living thing develops into another type is called evolution. Modern humans evolved in stages from a series of ancestors, including several earlier forms of humans.

Dec 11, 2025 · Human evolution - Bipedalism, Adaptations, Fossils: There are many theories that attempt to explain why humans are bipedal, but none is wholly satisfactory. Increased speed can be …

Dec 11, 2025 · Human evolution - Hominin, Habitats, Adaptations: The section Background and beginnings in the Miocene describes certain global climatic changes that reduced forested areas and …

Biological evolution is a process of descent with modification. Lineages of organisms change through generations; diversity arises because the lineages that descend from common ancestors diverge …

But above all, an understanding of human origins provides a glimpse into early human history, into a time and world virtually unimaginable to people alive today and that yet shaped the fundamental …