hace aproximadamente 130 millones de años

Despite its menacing appearance

as the mastodon struggles to keep its head above the sticky tar

Outstanding features of Livyatan melvillei:Impressive size: Livyatan was one of the largest known marine predators

Pakicetus inachus Scale:1:20 hace aproximadamente 130 millones dePakicetus inachus is a species of prehistoric cetacean that lived approximately 50 million years ago, during the early Eocene period. This ancient marine mammal is considered one of the first ancestors of modern cetaceans, which includes whales and dolphins. Pakicetus inachus was an animal of moderate size, with an elongated body and both terrestrial and aquatic adaptations. Although it was not completely aquatic like current whales, it had already