Egyéb

The ice spread from the poles towards the equator. In the high mountains, the boundary of perpetual snow has moved lower. Vast body of seawater froze […]

During the Pleistocene, the megafauna was diverse all over the world. Most continental ecosystems had similar or greater biodiversity in megafauna than modern African ecosystems. During […]

As we approach the equatorial regions from the Arctic, the size of bears is decreasing. The largest is the polar bear, followed by the Eurasian brown […]

The land in the Antarctic and near the Arctic is still covered by a continuous ice sheet thousands of metres thick. This mass of ice preserves […]