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Blue-spotted salamanders are known to be associated with unisexual (all-female) populations of ancient origin. [8] The unisexual females often look like blue-spotted salamanders but have hybrid genomes [ 9 ] and require sperm from a co-occurring, related species to fertilize their eggs and initiate development.
Spotted salamanders do produce poisonous skin secretions, which allow them to taste bad to predators. For a human, these skin secretions are more irritating and would not kill an adult or even a ...
Normally fish would eat salamander eggs, but in the vernal pools the eggs are safe. The hatched salamanders can also thrive. [5] [3] Salamanders are explosive spawners and the females lay thousands of eggs which they attach to sticks below the water. In addition to the loss of the hatching larvae to predators, the larger larvae engage in ...
These salamanders are mostly terrestrial and eat invertebrates, although some species are known to eat smaller salamanders. They can be found throughout the US and some areas of Canada in damp forests or plains. This family contains some of the largest terrestrial salamanders in the world, the tiger salamander and the coastal giant salamander ...
Spotted salamanders do produce poisonous skin secretions, which allow them to taste bad to predators. For a human, these skin secretions are more irritating and would not kill an adult or even a ...
The spotted salamander is about 15–25 cm (5.9–9.8 in) long, [7] with females generally being larger than males. [8] They are stout, like most mole salamanders, and have wide snouts. [3] The spotted salamander's main color is black, but can sometimes be a blueish-black, dark gray, dark green, or even dark brown.
The feet are broad with short digits, usually four on the front feet and five on the rear. Salamanders do not have claws, and the shape of the foot varies according to the animal's habitat. Climbing species have elongated, square-tipped toes, while rock-dwellers have larger feet with short, blunt toes.
Salamandridae is a family of salamanders consisting of true salamanders and newts. Salamandrids are distinguished from other salamanders by the lack of rib or costal grooves along the sides of their bodies and by their rough skin. Their skin is very granular because of the number of poison glands. They also lack nasolabial grooves.