Arctodus pristinus is an extinct species of short-faced bear belonging to the genus Arctodus

Tsintaosaurus (T

Altura 45 mm

suggesting that Tyrannosaurus rex may have been more careful and selective in its feeding than previously thought

Ypupiara lopai Scale:1:35 Arctodus pristinus is an extinctYpupiara lopai is an extinct species of theropod that inhabited during the Cretaceous period, specifically in what is now Brazil. This dinosaur belongs to the group of unenlagines, a subfamily within the dromaeosaurids, known for its similarity to modern birds. Its name, "Ypupiara", comes from the Tupi Guarani and means "the one who lives in the water", reflecting the possible association of this animal with aquatic or semi aquatic environments. The