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The second-longest venomous snake in the world is possibly the African black mamba (Dendroaspis polylepis), which can grow up to 4.5 m (15 ft). Among the genus Naja, the longest member arguably may be the forest cobra (Naja melanoleuca), which can reportedly grow up to 3 m (9.8 ft).
Pantherophis obsoletus, also known commonly as the western rat snake, black rat snake, pilot black snake, or simply black snake, [4] is a nonvenomous species of snake in the family Colubridae. The species is native to central North America. There are no subspecies that are recognized as being valid. [5] Its color variations include the Texas ...
In comparison to rat snake species at relatively colder regions, rat snake species at lower latitudes tend to be larger in size due to warmer climate conditions. As the global climate warms, the average body size of rat snakes at higher latitudes will become larger, which will allow the species to catch more prey and thus increase their overall ...
They are a large terrestrial snake genus that lack subocular scales. Originally classified in the genus Elaphe, phylogenetic studies have found this taxon to be closely related to Pituophis. As with all snakes Pantherophis is an obligate faunivore with a diet that consists of small mammals, birds, reptiles and amphibians, and even insects ...
It is among the largest and most robust of all the rat snake species. It varies greatly in colouration, from creme saddles to dark brown saddles. Many captive bred specimens have been line bred to produce clean yellow saddles. The northern, darker, is the most common variety.
The new species, described in the journal Diversity, diverged from the previously known southern green anaconda about 10 million years ago, differing genetically from it by 5.5 per cent.
The snake is a constrictor, and adults eat mainly endotherms while young eat mainly ectotherms. The diet includes rodents, lizards, frogs, and birds and their eggs. [26] The snakes can also eat young chickens and chicks, hence the common name chicken snake. Rat snakes are most vulnerable to predators as juveniles.
Pantherophis emoryi, commonly known as the Great Plains rat snake, is a species of nonvenomous rat snake in the family Colubridae. The species is native to the central part of the United States , from Missouri to Nebraska , to Colorado , south to Texas , and into northern Mexico .