In the first study to consider the long-term evolution of the rivers that flow beneath glaciers, researchers have new ...

Sharp climatic oscillations during the ice ages led to deer evolving and differentiating very rapidly, producing a high number of species and subspecies. Due to their dynamic evolution and abundance ...

For example, dead animals and plants can be preserved in amber, peat bogs, tar pits, or in ice. Amber close amberHardened tree resin. is a substance that is formed from hardened tree sap or resin.