threatened – adj. in danger of something bad happening

endangered – adj. used to describe a type of animal or plant that has become very rare and that could die out completely

species – n. a group of animals or plants that are similar and can produce young animals or plants : a group of related animals or plants that is smaller than a genus

declining– v. to become lower in amount or worse in condition

status– n. the official position of a person or thing according to the law

thrive– v. to grow or develop successfully : to flourish or succeed

warden– n. a person who is in charge of or takes care of something