In order to get the most out of this site, you must first know a little bit about endangered species.
According to the U.S. Fish and Wildlife Service, and endangered species is one that is in danger of extinction throughout all or a significant portion of its range.

    A species can also be listed as threatened.  A threatened species is one that is likely to become endangered in the foreseeable future.  This category is useful because it allows people some warning before a species is endangered.  If managed correctly, a threatened species will recover before it becomes endangered.