Mastodon group consisted of adult females and young, living in bonded groups called mixed herds. The males abandoned the mixed herds once reaching sexual maturity and lived either alone or in male bond groupings. As in modern elephants, there probably was no seasonal synchrony of mating activity, with both males and females seeking out each other for mating when sexually active. Mastodons have been characterized as predominantly browsing animals. Most accounts of gut contents have identified coniferous twigs as the dominant element in their diet. Other accounts (Burning tree mastodon) have reported no coniferous content and suggest selective feeding on low,
Mastodon (band) in 2011. On January 18, 2015, it was reported that Brent Hinds was working on a new Mastodon album, showing a picture with him playing the 13 string pedal steel. The same report was later confirmed by Troy Sanders, who stated: "Every record that we do is gonna sound different, because we always want to evolve and create our own musical path. And every record will be different. We do not wanna write the same record twice." On March 12, 2015, Mastodon released a new track called "White Walker", which will appear on the upcoming "Game of Thrones: Catch the