The first life on Earth was most likely simple, single-celled organisms that shared characteristics with organisms currently in the domain Archaea.
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...
Stromatolites — like these, found in the World Heritage Area of Shark Bay,
Western Australia — may contain cyanobacteria, which were most likely earth's
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.
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 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).
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 ...
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 ...
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 ...