Education
The stage was set for earth’s birth much, much earlier, at the origin of all things – the Big Bang – about 13.7 billion years ago.
Modern scientists estimate that the earth is 5 to 6 billion years old. By comparison, most of the evolution of human like creatures has taken place in a very short time – the first mammals began to evolve from reptiles perhaps 200 million years ago, and the first placental mammals (i.e., that give birth to live young.
The earth as it may have appeared early in its history after the initial crust had started to form. Prior to about 4.6 billion years ago the proto-earth formed from the coalescence of variously sized ‘planetesimals’ or small bodies of rock and frozen gases that condensed in the plane of the ecliptic, the flat regions of space in which human planets orbit.
Rabbits, cacti, bumblebees, jellyfish, penguins, sunflowers – all living things on the earth are the descendents of simple, single-celled organisms that loved more than 3.5 billion years ago.
The claim based on fossils, not just chemical signals. Filamentous forms in agate-like rock dated to be around 3.5 billions years in age were discovered by American paleontologist William Schopf.
The first human like animals appeared some 3 million years ago, around the beginning of the epoch known as the Pleistocene. This was the time of the great ice ages, when drastic changes in climate affected life throughout the world.
This climate change may account for more rapid evolution that produced modern human beings in such a short period; that is the pace of natural selection may have been quickened because of environmental changes and the resulting pressures on our ancestors.
The evolution of life on earth
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We’ve been conditioned by television and movies to accept the likelihood of intelligent life elsewhere in the universe. “Of course there’s intelligent life out there; I saw it last week on Star Trek.” We’ve...
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Education
The evolution of life on earth
The stage was set for earth’s birth much, much earlier, at the origin of all things – the Big Bang – about 13.7 billion years ago.
Modern scientists estimate that the earth is 5 to 6 billion years old. By comparison, most of the evolution of human like creatures has taken place in a very short time – the first mammals began to evolve from reptiles perhaps 200 million years ago, and the first placental mammals (i.e., that give birth to live young.
The earth as it may have appeared early in its history after the initial crust had started to form. Prior to about 4.6 billion years ago the proto-earth formed from the coalescence of variously sized ‘planetesimals’ or small bodies of rock and frozen gases that condensed in the plane of the ecliptic, the flat regions of space in which human planets orbit.
Rabbits, cacti, bumblebees, jellyfish, penguins, sunflowers – all living things on the earth are the descendents of simple, single-celled organisms that loved more than 3.5 billion years ago.
The claim based on fossils, not just chemical signals. Filamentous forms in agate-like rock dated to be around 3.5 billions years in age were discovered by American paleontologist William Schopf.
The first human like animals appeared some 3 million years ago, around the beginning of the epoch known as the Pleistocene. This was the time of the great ice ages, when drastic changes in climate affected life throughout the world.
This climate change may account for more rapid evolution that produced modern human beings in such a short period; that is the pace of natural selection may have been quickened because of environmental changes and the resulting pressures on our ancestors.
The evolution of life on earth
- Facebook Has A Billion Users In A Single Day - Mark Zuckerberg
"For the first time over a billion people used Facebook on a single day, according to company founder Mark Zuckerberg." The "milestone" was reached on Monday, when "1 in 7 people on Earth used Facebook to connect with their friends and family",...
- Why Aren't Aliens Calling Earth?
We’ve been conditioned by television and movies to accept the likelihood of intelligent life elsewhere in the universe. “Of course there’s intelligent life out there; I saw it last week on Star Trek.” We’ve...
- American Paleontologist, Simpson, George Gaylord (1902 – 1984)
Simpson, George Gaylord is United States paleontologist, whose work did much to shape the postwar development of paleontology and its impact on evolutionary. Simpson, born the son of lawyer on Chicago, Illinois, was educated at the University of Colorado...
- History Of Painting
The origin of painting is unknown. The first important records of this art are met with in Egypt. Plato who lived centuries before the Christian era wrote that painting had been practiced by the Egyptian for ten thousand years. According to Pliny the...
- Darwin And His Theory
Charles Darwin was born on 12 February 1809, the fifth of six children. His grandfather Erasmus Darwin was a physician and poet with fascinating for natural philosophy. The poet known depictions of the natural world and the speculation about the nature...