Wordly Wise Check-Up! Study your words of the week in an interactive way! Tools A B ancestor a person from whom one is descended carnivore a flesh-eating animal comprehend to understand duration the time during which something lasts or continues evident easy to see and understand; clear extinct no longer existing or living ferocious savage; fierce gigantic very large; huge obscure to cover up or keep from being seen option choice premature too early; happening or arriving before the proper time preserve to save; to protect prey an animal that is hunted for food` puny weak survive to stay alive where there is a chance of dying