During the Ice Age the temperature dropped worldwide

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During the Ice Age the temperature dropped worldwide. Ice caps expanded outwards from the poles, and the glaciers crept downwards from the mountains. The Earth had the modern range of vegetation, stretching from the cold tundra, through coniferous forests, temperate forests, tropical deserts and grasslands, to equatorial rain forests, but these zones were all compressed towards the equator with large areas of cold climate environments on the northern continents. Tundra conditions, or the point at which tree growth is hindered, prevailed here.(walking dinosaur costume)
The factor that controlled the landscape conditions in the tundra was the permafrost. This was a layer of permanently frozen subsoil with, above it, soil that thawed and then froze as the seasons changed. During the summer the soil thawed, but the water could not drain away through the permafrost below, and resulted in boggy landscapes of lakes and swamps, clothed in hardy low-growing plants, such as grasses, sedges, mosses, lichens and heathers, as well as dwarf species. The soils themselves consisted of sand and rubble washed out of glaciers and spread by rivers of water from the melting ice.(animatronic dinosaur)
Cold climate animals, such as mammoths, woolly rhinoceros and Irish elk migrated with the seasons across this bleak landscape, feeding on the summer vegetation, in the same way that modern-day reindeer and musk-ox cross the contemporary equivalent in far northern Canada and Siberia.
Occasionally the animals became trapped in muds and streams,and their bodies were preserved by freezing as the cold winter conditions came around.
This was the landscape inhabited by our human ancestors in the Ice Age. These were the animals that they hunted for food.
Below and above: As the ice caps expanded and contracted with the seasons, the rivers pouring from them deposited rubble and sand. These soils supported cold-climate plants that were grazed by a number of migrating cold’ adapted animals.