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The cougar (Puma concolor) (/ ˈ k uː ɡ ər /, KOO-gər), sometimes called the mountain lion, catamount, or puma, is a large small cat native to the Americas. It inhabits North, Central and South America, making it the most widely distributed wild, terrestrial mammal in the Western Hemisphere, and one of the most widespread in the world.
The North American cougar (Puma concolor couguar) is a cougar subspecies in North America. It is the biggest cat in North America ( North American jaguars are fairly small). [ 4 ] [ 5 ] And the second largest cat in the New World . [ 6 ]
The eastern cougar or eastern puma (Puma concolor couguar) is a subspecies designation proposed in 1946 for cougar populations in eastern North America. [ 2 ] [ 3 ] The subspecies as described in 1946 was declared extinct by the U.S. Fish and Wildlife Service in 2011. [ 4 ]
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A typical triple bond, for example in acetylene (HC≡CH), consists of one sigma bond and two pi bonds in two mutually perpendicular planes containing the bond axis. Two pi bonds are the maximum that can exist between a given pair of atoms. Quadruple bonds are extremely rare and can be formed only between transition metal atoms, and consist of ...
In biology, a pair bond is the strong affinity that develops in some species between a mating pair, often leading to the production and rearing of young and potentially a lifelong bond. Pair-bonding is a term coined in the 1940s [ 1 ] that is frequently used in sociobiology and evolutionary biology circles.
The Florida panther had for a long time been considered a unique cougar subspecies, with the scientific name Felis concolor coryi proposed by Outram Bangs in 1899. [10] A genetic study of cougar mitochondrial DNA showed that many of the purported cougar subspecies described in the 19th century are too similar to be recognized as distinct. [11]
In non-polar covalent bonds, the electronegativity difference between the bonded atoms is small, typically 0 to 0.3. Bonds within most organic compounds are described as covalent. The figure shows methane (CH 4), in which each hydrogen forms a covalent bond with the carbon. See sigma bonds and pi bonds for LCAO descriptions of such bonding. [22]