The term "survival instinct" refers to an innate, natural impulse that drives living beings to protect and preserve their own existence. This can manifest in various ways depending on the species or individual, but generally speaking it involves a heightened awareness of one's surroundings, an ability to quickly assess potential threats or opportunities for survival, and taking actions necessary to ensure self-preservation. The concept is often associated with animals in the wild who must constantly navigate their environment to avoid predators, find food, and reproduce successfully. However, humans also possess a survival instinct that can manifest in situations such as disasters or dangerous circumstances where one's life may be at risk. Overall, the "survival instinct" is an essential aspect of biological existence, driving living organisms to prioritize their own continued existence over all other concerns.