Search results
Results From The WOW.Com Content Network
Agkistrodon piscivorus is a species of venomous snake, a pit viper in the subfamily Crotalinae of the family Viperidae. It is one of the world's few semiaquatic vipers (along with the Florida cottonmouth), and is native to the Southeastern United States. [5] As an adult, it is large and capable of delivering a painful and potentially fatal bite ...
The western cottonmouth (Agkistrodon piscivorus leucostoma) [2] [3] [4] was once classified as a subspecies of the cottonmouth (Agkistrodon piscivorus).However, DNA based studies published in 2008 and 2015, revealed no significant genetic difference between the eastern cottonmouth (Agkistrodon piscivorus piscivorus) and the western cottonmouth (Agkistrodon piscivorus leucostoma) and ...
The eastern cottonmouth (Agkistrodon piscivorus piscivorus) [4] [5] was once classified as a subspecies of the cottonmouth (Agkistrodon piscivorus).However, DNA based studies published in 2008 and 2015, revealed no significant genetic difference between the eastern cottonmouth (Agkistrodon piscivorus piscivorus) and the western cottonmouth (Agkistrodon piscivorus leucostoma) and synonymized ...
Agkistrodon is a genus of pit vipers commonly known as American moccasins. [ 2 ][ 3 ] The genus is endemic to North America, ranging from the Southern United States to northern Costa Rica. [ 1 ] Eight species are currently recognized, [ 4 ][ 5 ] all of them monotypic and closely related. [ 6 ] Common names include: cottonmouths, copperheads ...
The Florida cottonmouth was first described as a subspecies, Agkistrodon piscivorus conanti, as recently as 1969. The holotype is a young adult male in the United States National Museum (USNM 165962), and the type locality is "at the edge of Rochelle-Cross Creek Road, about 7 miles southeast of Gainesville , Alachua County, Florida " .
The timeline of human evolution outlines the major events in the evolutionary lineage of the modern human species, Homo sapiens, throughout the history of life, beginning some 4 billion years ago down to recent evolution within H. sapiens during and since the Last Glacial Period. It includes brief explanations of the various taxonomic ranks in ...
For the study of humans, see Anthropology. The hominoids are descendants of a common ancestor. Human evolution is the evolutionary process within the history of primates that led to the emergence of Homo sapiens as a distinct species of the hominid family that includes all the great apes. [ 1 ]
Denisovan. The Denisovans or Denisova hominins ( / dəˈniːsəvə / də-NEE-sə-və) are an extinct species or subspecies of archaic human that ranged across Asia during the Lower and Middle Paleolithic, and lived, based on current evidence, from 285 to 25 thousand years ago. [1] Denisovans are known from few physical remains; consequently ...