BrahMos WORLD INDIA MADHYA PRADESH BHOPAL WTN SPECIAL GOSSIP CORNER RELIGION SPORTS BUSINESS FUN FACTS ENTERTAINMENT LIFESTYLE TRAVEL ART & LITERATURE SCIENCE & TECHNOLOGY HEALTH EDUCATION DIASPORA OPINION & INTERVIEW RECIPES DRINKS BIG MEMSAAB 2017 BUDGET 2017 FUNNY VIDEOS VIRAL ON WEB PICTURE STORIES Mahakal Ke Darshan
WTN HINDI ABOUT US PRIVACY POLICY SITEMAP CONTACT US
N
W
T
logo
Breaking News

HUMAN ORIGINS

Saturday - June 9, 2018 1:58 pm , Category : Fun Facts

Today only one human species, homo sapiens, exists. The course of human prehistory as many as 15 types of early human walked the earth. Though the number of species and their relationships to one another are not settled ,it seems clear that the earliest hominids –a term that describes  all humans who ever lived-took their first steps in Africa.

They were (and we still are) primates, descended from a group of apes that also gave rise to gorillas and chimpanzees. Around 4 million years ago, something in the environment led the first hominids to leave the trees and walk upright, marking the official transition to human status. These early hominids are often grouped under the name Australopiths (from the term “southern ape” ) and include the genera Ardipithecus, Australopithecus and paranthropus. About 3.5 to 5 feet tall, they had apelike faces with sloping foreheads and prominent jaws, but their canine teeth were small compared with an ape’s and their hands featured long, flexible thumbs. the most famous fossil member of these early humans is the Australopithecus afarensis known fondly  as “ Lucy” . whose partial ske;eton was discovered in 1974 , her species, which lived in eastern Africa between 3 and 4 million years ago , is one leading candidates for being a direct ancestor of Homo sapiens.

Australopiths died out about 1.2 million years ago . By that time ,their descendants , a new kind of hominid were already roaming Africa . The genus Homo, which came  into existence roughly 2.3 to 2.5 million years ago ,was marked by a distinct increase in brain size . by 1.9 million years ago, these humans had tall skeletons like those of today’s  Homo sapiens, although their skulls still featured sloping foreheads, prominent  brows, and heavy jaws. These late species of HOMO also demonstrated another similarity to modern humans; the desire to explore new lands. Starting around 1.8 millions years ago, the first great wave of human migration occurred when adventurous members of Homo erectus trekked out of Africa and into Europe and Asia. However ,these hominids  eventually died out and were not the direct ancestors of today’s humans, that honor falls to the first members of our own genus, Homo sapiens, who appeared in East Africa about 2,00,000 years ago.
Leave a Comment
* Name
* Email (will not be published)
*
* - Required fields