What are some neogen organisms?

Neogen is a geological period that started 23 million years ago and extends up to 2.6 million years or to this day, depending on the scientist. Because this has happened relatively recently or is still in progress, neo -Geno organisms tend to be mostly similar to today's but many important differences. Because people caused the extinction of thousands of species since we started spreading around the world 60,000 years ago, Neogen had historically more species than we observed today. South America was one of the most unusual fauna on the planet, dominated by warning, including large carnivorous marsupials, xenartrans (Armadillos, ants and sloths, including an elephant size megatherium ) and a unique and diversity of native ungulates. native fauna.

Neogenic period is characterized by an ongoing ice age that beginsLA at the beginning of the period and continues to this day. It was interrupted by glaciers and interglacials, a period when continental glaciers cover a large part of North America and Eurasia, and other periods when they retreat to Greenland and Antarctica. Unlike warmer, wet periods earlier, it is characterized by increasing arridite and replacing forests by grassland. Many of the characteristic neogenic organisms are ruminants - animals that chew cud, adaptation to extraction of more energy from grass.

While today large animals are relatively rare, it was much more common during most of the Neogen. Eurasie was colonized by mammoths, including Mammoth Wool. Some parts of Europe and the Middle East were colonized by animals traditionally associated with Africa such as hippos, water buffalo, lions and cheetahs. Most of Eurasia caves were full of enemy animals such as cave bear or cave hyena. It is assumed that competition between people and cave hyenas has slowed our migration overWith Bering's Strait for thousands of years.