What is the Neogene period?
Neogen is the eleventh and latest period of complex life on Earth. It started 23 million years ago and continues to the present. A characteristic trend during the neogene period was global cooling and the death of forests before, previously filled with the Center of Continents such as Asia, North America, even Australia. Instead of forests, huge arid plains, pastures, prairies, steppes and tundra grew. The world as a whole has dried up. The pleasant climactic conditions that persisted for 200 million years have stopped relatively sudden. Due to the amount of grass, neogene is sometimes called the age of grass. Previously, the forests spread towards the poles. These harsh fitnesses caused the intense forces of natural selection to function on diversification mammals, which provided them with larger bodies that are more suitable for holding cold climates. On the plus side for land animals, the sea level decreased to record the minimum and open a huge amount of soil for colonization.
A new class of predators, along with much older attacked predators, appeared: pursuers. Instead of waiting for killing, these predators were chasing prey through huge pastures for days or weeks, ready to consume the weakest of the herd when they ran out of energy. The arms race between predators and prey was developing. Deer and Bison are two of the largest herbivorous animals during the Neogen period. Predators of these animals included large cats and wolves.
In addition to the wandering herds of large herbivorous animals, there were municipal generals who survived because of the highly reproductive measure. They were rodents, raccoon, rabbits and cams. The parallel lines of predators included foxes, cats, dogs and snakes.
The middle and late Neogene periods contained animals known as the Pleistocene Megafauna, including large ground sloths, terrible wolf, bears with short cheeks, saber cats, mammoths, even hamsters size bearat. In Australia, the Magdalena lizard was 20 feet and the "terrorist birds" of the size of man.
In the late Neogene period, intelligent primates appeared and very recently, from a geological point of view, completely took over the world. Today, people, their pets and meat make up about 99% of earthly vertebrate biomass. Our activity also causes one of the largest bulk disappearances since the event of extinction of chalk 65.5 million years ago, erased by dinosaurs and 60% of all animals of animals.