Endangered Species is a posthumous and compilation of unreleased tracks, guest appearances, and greatest hits by the late rapper Big Pun, released in 2001 following his death in February 2000. The proceeds from the album were to be given to Pun's widow, Liza Rios, and their three children, The album reached a peak chart position of #7. Liza Rios claims to have only received a small royalty check from the sales of Endangered Species, and in response, auctioned off her husband's Terror Squad medallion in July 2005.
The single from the album was "How We Roll", which featured at time, R&B newcomer Ashanti on the chorus & outro. The video to the song was made into a cartoon and helped remember Big Pun throughout. Fellow rapper and close friend Fat Joe, who was also the compilation's executive producer, revealed in the liner notes of the album that the title chosen for the compilation was in fact the original title for 2000's Yeeeah Baby. All of Pun's lyrics were included in the booklet of the disc, partly due to the limited amount of promotional tools available to the label, and partly because of a desire to emphasize Pun's technique as a lyricist.