current hypothesis
11Rare Earth hypothesis — In planetary astronomy and astrobiology, the Rare Earth hypothesis argues that the emergence of complex multicellular life (metazoa) on Earth required an improbable combination of astrophysical and geological events and circumstances. The term… …
12OPV AIDS hypothesis — Main articles: AIDS origin and AIDS origins opposed to scientific consensus The oral polio vaccine (OPV) AIDS hypothesis argues that the AIDS pandemic originated from live polio vaccines prepared in chimpanzee tissue cultures and then… …
132R hypothesis — The 2R hypothesis or Ohno s hypothesis, first proposed by Susumu Ohno in 1970,[1] is a contested hypothesis in genomics and molecular evolution suggesting that the genomes of the early vertebrate lineage underwent one or more complete genome… …
14RNA world hypothesis — A comparison of RNA (left) with DNA (right), showing the helices and nucleobases each employs. The RNA world hypothesis proposes that life based on ribonucleic acid (RNA) pre dates the current world of life based on deoxyribonucleic acid (DNA),… …
15Giant impact hypothesis — Big splash redirects here. For other uses, see Big Splash (disambiguation). Artist s depiction of the giant impact that is hypothesized to have formed the Moon The giant impact hypothesis proposes that the Moon was created out of the debris left… …
16Extraterrestrial hypothesis — [ 200px|thumb|Right|Amateur photographs from Sheffield, England, 4 March 1962 Minneapolis, Minnesota, 20 October 1960. Taken from a 1997 CIA training manual. [Haines, Gerald K, [https://www.cia.gov/csi/studies/97unclass/ufo.html A Die Hard Issue …
17Kurgan hypothesis — The Kurgan hypothesis (also theory or model) is a model of early Indo European origins, which postulates that the Kurgan culture of the Pontic steppe were the most likely speakers of the reconstructed Proto Indo European language. Though… …
18Vine–Matthews–Morley hypothesis — The Vine–Matthews–Morley hypothesis, also known as the Morley–Vine–Matthews hypothesis was the first key scientific test of the seafloor spreading theory of continental drift and Plate tectonics. Geophysicist Frederick John Vine and the Canadian… …
19Solutrean hypothesis — The Solutrean hypothesis proposes that stone tool technology of the Solutrean culture in prehistoric Europe may have later influenced the development of the Clovis tool making culture in the Americas, and that peoples from Europe may have been… …
20Glutamate hypothesis of schizophrenia — The glutamate hypothesis of schizophrenia models the subset of pathologic mechanisms linked to glutamatergic signaling. The hypothesis was initially based on a set of clinical, neuropathological, and, later, genetic findings pointing at a… …
