The First Creatures That Existed On Earth | Wildlife Documentary

2016 February 26
216761 View
Wildlife Documentary
The First Creatures That Existed On Earth | Wildlife Documentary

The First Creatures That Existed On Earth | Wildlife Documentary. Welcome to WILDLIFE DOCUMENTARY - home of the best documentary films and documentary movies on wildlife, animals, nature, planet and universe. The evolutionary history of life on Earth traces the processes by which living and fossil organisms have evolved since life appeared on the planet, until the present day. Earth formed about 4.5 Ga (billion years) ago and life appeared on its surface within 1 billion years. The similarities between all present-day organisms indicate the presence of a common ancestor from which all known species have diverged through the process of evolution.[1] More than 99 percent of all species, amounting to over five billion species,[2] that ever lived on Earth are estimated to be extinct.[3][4] Estimates on the number of Earth's current species range from 10 million to 14 million,[5] of which about 1.2 million have been documented and over 86 percent have not yet been described.[6] Read More About "The First Creatures That Existed On Earth | Wildlife Documentary": https://en.wikipedia.org/wiki/Evolutionary_history_of_life Subscribe to Wildlife Documentary to be the first to receive updates: https://www.youtube.com/channel/UCWQpHcZDdHCYcaNrcabxLNg Join us in our wildlife documentary community interaction by following wildlife documentary: https://plus.google.com/u/0/b/108011479450246131296 Thanks for watching WILDLIFE DOCUMENTARY - home of the best documentary films and documentary movies on wildlife, animals, nature, planet and universe. #WildlifeDocumentary #DocumentaryFilms #DocumentaryMovies #Nature #Animals Thanks for watching "The First Creatures That Existed On Earth | Wildlife Documentary"