Unnatural Selection is the seventh album by American thrash metal band Flotsam and Jetsam, released on January 26, 1999.[1] It was the band's first album with two new members, Craig Nielsen (drums) and Mark Simpson (guitarist).
Unnatural Selection marked as a return to Flotsam and Jetsam's thrashy roots after almost a decade of musical experimentation with their metal sound, although it did continue the trend of most of their 1990s material, with the lyrical content focusing on social and political-related themes, whereas the band's 1980s output had Satanic/occult themes.