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Hace 3 días · Ciencias de la Vida. Una salamandra gigante fue en la era glacial el gran depredador de los pantanos. Un equipo internacional ha descubierto en Namibia un fósil del Paleozoico de gran tamaño al que han denominado Gaiasia jennyae. Este animal, que tenía un tamaño mayor que una persona, era un tetrápodo con una gran cabeza, dientes gigantes ...
Hace 3 días · Smilodon is a genus of felids belonging to the extinct subfamily Machairodontinae. It is one of the best known saber-toothed predators and prehistoric mammals. Although commonly known as the saber-toothed tiger, it was not closely related to the tiger or other modern cats.
Hace 2 días · The largest prehistoric animals include both vertebrate and invertebrate species. Many of them are described below, along with their typical range of size (for the general dates of extinction, see the link to each).
Hace 3 días · Ice age, any geologic period during which thick ice sheets cover vast areas of land. Such periods of large-scale glaciation may last several million years and drastically reshape surface features of entire continents. A number of major ice ages have occurred throughout Earth history.
Hace 3 días · The snowy owl is a very large owl. [6] They are the largest avian predator of the High Arctic and one of the largest owls in the world. [7] Snowy owls are about the sixth or seventh heaviest living owl on average, around the fifth longest and perhaps the third longest winged.
Hace 4 días · "There are some other more archaic animals still hanging on 300 million years ago, but they were rare, they were small, and they were doing their own thing," says Pardo.
Hace 1 día · Gaiasia lived in the middle of the Permian period, which spanned 298.9 million years to 251.9 million years ago. It thrived as a top predator 40 million years before dinosaurs evolved to roam the ...
