Description: This story revolves around a business called Time Safari, Inc. Time Safari promises to take people back in time so they can hunt prehistoric animals, such as Tyrannosaurus rex. In order to avoid a time paradox, they are very careful to leave history undisturbed on the principle that even the slightest change can cause major changes in the future. /// Changes in the past affect the future; part of the genealogy of the term Butterfly effect.