Trilobite

For more than 250 million years, the primeval oceans of the Paleozoic teemed with trilobites. These hardy invertebrates evolved into an astonishing array of separate species—more than 25,000 at last count—and much remains unknown about these once-ubiquitous creatures. Fossil enthusiasts are captivated by trilobites' diversity and adaptability, enthralled by the possibility of catching a glimpse of a transcendently strange past.

TV scientist Ben Garrod presents the biggest extinction events ever, told from the point of view of evolution's superstars, the most incredible animals ever to swim, stalk, slither or walk our planet. Whether you're 9 or 90, his unique exploration of the most destructive, yet most creative, force in nature makes top level science fun.

Mastodon is an American heavy metal band from Atlanta, Georgia, formed in 2000. The group is composed of Troy Sanders (bass/vocals), Brent Hinds (guitar/vocals), Bill Kelliher (guitar), and Brann Dailor (drums/vocals). Mastodon has released seven studio albums, as well as a number of other releases. The band's 2002 debut album, "Remission", garnered significant critical acclaim for its unique sound.