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The first life on Earth was most likely simple, single-celled organisms that shared characteristics with organisms currently in the domain Archaea.

Timeline of the evolutionary history of life - Wikipedia


This timeline of the evolutionary history of life represents the current scientific theory outlining the major events during the development of life on planet Earth. ... The first known mass extinct...

How Did Life Arise on Earth? - Live Science


Stromatolites — like these, found in the World Heritage Area of Shark Bay, Western Australia — may contain cyanobacteria, which were most likely earth's first ...

BBC Nature - History of life on Earth


The history of life on Earth began about 3.8 billion years ago, initially with single- celled prokaryotic cells, such ... 570 million years ago, First arthropods evolve.

Earth's Beginnings: The Origins of Life | Ecology Global Network


Sep 10, 2011 ... Earth is the only planet we know of that can support life. ... For nearly the first billion years of formation (4.5 to 3.8 billion years ago) — called the ...

The Beginnings of Life - The Physics of the Universe


The study of the origin of life on Earth or, more specifically, how life on Earth ... is the study of how living things have changed over time since life first arose).

Scientists may have found the earliest evidence of life on Earth ...


Oct 19, 2015 ... These crystals provide a rare glimpse into the first chapter of Earth's history, known as the Hadean eon. “They are pretty much our only physical ...

The Beginnings of Life on Earth » American Scientist


Advanced forms of life existed on earth at least 3.55 billion years ago. ... Even if life came from elsewhere, we would still have to account for its first development.

www.ask.com/youtube?q=First Life on Earth&v=dYphAH2tKYE
May 4, 2011 ... Hello, First of all, i did not made this video. The rightful owner of this video is http:/ /www.wellcometreeoflife.org/ Please play the video in HD if ...

Timeline: The evolution of life | New Scientist


Jul 14, 2009 ... There are all sorts of ways to reconstruct the history of life on Earth. ... The first life may have developed in undersea alkaline vents, and was ...