Hegedűs Anita

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 […]

Cyclical changes in terrestrial elements and their combined effect cause climate oscillations, during which periods of glaciation and warming (glacial and interglacial periods) alternate on Earth, […]