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The semi-aquatic black swamp snake, Seminatrix pygaea, which lives in an environment where periods of drought are very common, has shown that environmental factors have a negative effect on female snakes whose large size was selected to increase fecundity as these droughts create a unique scenario to test whether survivability or reproductive ...
This is a list of the scientific names of extant snakes. It includes 517 genera and 3,738 species: [1] Acanthophis Acanthophis antarcticus Acanthophis cryptamydros
The black swamp snake is a small, thin snake, usually 25–38 cm (10–15 in) long (including tail); the record size is 55 cm (22 in). [7] [8] It is uniformly black on the dorsum, with a bright orange or red belly. L. pygaea cyclas showing black dorsum and red ventrum.
Pantherophis obsoletus, also known commonly as the western rat snake, black rat snake, pilot black snake, or simply black snake, [5] 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. [6] Its color variations include the Texas ...
Eating a southern leopard frog. The southern black racer is a predator that relies on lizards, insects, moles, birds, eggs, small snakes, rodents, and frogs. Despite its specific name constrictor (scientific name: Coluber constrictor), the racer is more likely to suffocate or crush its victim into the ground, rather than coiling around it in typical constrictor fashion.
When startled, the gray ratsnake, like other ratsnakes, stops and remains motionless with its body held in a series of wave-like kinks. The snake will also rattle its tail against whatever it is lying on, making an audible buzzing sound; this is intended to fool a potential threat into thinking that they've encountered a rattlesnake. The gray ...
Eastern garter snakes average between 46–66 cm (18–26 in) long. The largest recorded length was 124 cm (48.7 in) long. Females are typically larger than males. They are either a greenish, brown, or black color and have a distinct yellow or white stripe. The eastern garter snake is broadly considered non-venomous.
Extant primates exhibit a broad range of variation in sexual size dimorphism (SSD), or sexual divergence in body size. [4] It ranges from species such as gibbons and strepsirrhines (including Madagascar's lemurs) in which males and females have almost the same body sizes to species such as chimpanzees and bonobos in which males' body sizes are larger than females' body sizes.