Mesozoic that would move into their current positions during the next era. The climate of the Mesozoic was varied, alternating between warming and cooling periods. Overall, however, the Earth was hotter than it is today. Dinosaurs appeared in the Late Triassic and became the dominant terrestrial vertebrates early in the Jurassic, occupying this position for about 135 million years until their demise at the end of the Cretaceous. Birds first appeared in the Jurassic, having evolved from a branch of theropod dinosaurs. The first mammals also appeared during the Mesozoic, but would remain small—less than 15 kg (33 lb)—until the Cenozoic.
Million Years Ago (song) of my youth"". Musically, the song is an acoustic tune accompanied only by guitar. "Million Years Ago" received positive reviews from critics, with many comparing it to the music of Madonna. The song charted in Australia, Belgium, Canada, France, Finland, Germany, Hungary, Ireland, Spain, the United Kingdom and the United States. Adele performed the song during "Adele at the BBC" and on "Today". "Million Years Ago" is an acoustic tune accompanied only by guitar, finds Adele pining "for the normality of her not-so-distant childhood. Entwined with Middle Eastern twists of background hums that suggest Madonna's 'Frozen'". The song's lyrics touch