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The history of life on Earth traces the processes by which living and extinct organisms evolved, from the earliest emergence of life to the present day. Earth formed about 4.5 billion years ago (abbreviated as Ga, for gigaannum) and evidence suggests that life emerged prior to 3.7 Ga. [1] [2] [3] The similarities among all known present-day species indicate that they have diverged through the ...
Earliest known life forms. Evidence of possibly the oldest forms of life on Earth has been found in hydrothermal vent precipitates. [1] The earliest known life forms on Earth may be as old as 4.1 billion years old (or Ga) according to biologically fractionated graphite inside a single zircon grain in the Jack Hills range of Australia. [2] The ...
Zygote, at the start of an organism's life; Embryo, early in an organism's life; Foetus, early in an animal's life, occurring before birth; Larva, an early stage in many animal life forms before maturity; Child, early human life
Charles Robert Darwin FRS FRGS FLS FZS JP [5] ( / ˈdɑːrwɪn / [6] DAR-win; 12 February 1809 – 19 April 1882) was an English naturalist, geologist, and biologist, [7] widely known for his contributions to evolutionary biology. His proposition that all species of life have descended from a common ancestor is now generally accepted and ...
Artificial life is the simulationof any aspect of life, as through computers, robotics, or biochemistry.[162] Synthetic biologyis a new area of biotechnologythat combines science and biological engineering. The common goal is the design and construction of new biological functions and systems not found in nature.
Early life and career of Abraham Lincoln. Abraham Lincoln was born on February 12, 1809, in a one-room log cabin on the Sinking Spring farm, south of Hodgenville in Hardin County, Kentucky. His siblings were Sarah Lincoln Grigsby and Thomas Lincoln, Jr. After a land title dispute forced the family to leave in 1811, they relocated to Knob Creek ...
Early life of Isaac Newton. Sir Isaac Newton at 46 in Godfrey Kneller 's 1689 portrait. The following article is part of a biography of Sir Isaac Newton, the English mathematician and scientist, author of the Principia. It portrays the years after Newton's birth in 1642, his education, as well as his early scientific contributions, before the ...
Sign at the childhood home of Joe Biden in Scranton. Biden was born on November 20, 1942, at St. Mary's Hospital in Scranton, Pennsylvania, [5] to Catherine Eugenia "Jean" Biden (née Finnegan) [6] and Joseph Robinette Biden Sr. [7] He was the first of four siblings in a Catholic family, with a sister, Valerie, and two brothers, James and Frank, following. [8]