Goose bumps, also called goose flesh, goose pimples, the medical term cutis anserina, are the bumps on a person's skin at the base of body hairs which may involuntarily develop when a person is cold or experiences strong emotions such as fear, nostalgia, pleasure, euphoria, awe, admiration and sexual arousal.
The formation of goose bumps in humans under stress is a vestigial reflex; its function in human ancestors was to raise the body's hair, making the ancestor appear larger and scaring off predators. The reflex of producing goose bumps is known as arasing, piloerection, or the pilomotor reflex. It occurs in many mammals besides humans; a prominent example is porcupines, which raise their quills when threatened, or sea otters when they encounter sharks or other predators.
Goosebumps HorrorLand is a horror novella series by R.L. Stine, a spin-off of his popular Goosebumps books. There was an almost ten-year gap between the publication of the initial installment in the Goosebumps Horrorland series and the previous publication of other Goosebumps novels.