Mating
"Researchers at the University of Chicago have discovered a substance produced by male salamanders that acts on the female salamanders as a chemical signal to speed up the courtship process and hasten mating."  The male salamander delivers pheromones directly to a female during a process called "tail-straddling walk."  In this stage the female straddles the male's tail while both of them walk forward together.  The male often stops to rub his 'mental gland' (which produces the pheromones) on the female to give his chemical message in hopes of speeding up the courtship process.  The male then produces a spermadophore (sperm case) on the ground, and still straddling the male's tail the female walks forward and takes in the sperm to fertilize her eggs. 
*Salamanders (Home)
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Food
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Handling
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Hibernation
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Life Cycle
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Predators
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Surroundings/Habitat
*Picture Library
"A male-female pair in the tail-straddling walk.  The male has turned back to apply courtship pheromones to the female with his mental gland under his chin."