Latest research has revealed that first mammals and first dinosaurs appeared on earth at about the same time and that the ancestral mammals underwent dramatic evolution while challenging the dinosaurs. It was these struggles that created the basic nature of all present mammals, including humans.
Ended
恐竜ＶＳほ乳類 １億５千万年の戦い
July 16, 2006
July 17, 2006
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