The Jurassic Period
During the Jurassic period many land animals such as dinosaurs walked the land. This was the first period to have life above the oceans. Many plants had evolved to live on land and were found in moist areas. Bisexual reproduction came to use in that period from the ferns pollination. Later on trees began to grow because of the Earth’s changing weather.
The terrain was very huge and filled with many different types of animals and plants. At the time Pangaea was occurring so there was a lot of shifting in the land and animals. Many different species were found all around instead of one confined space because of Pangaea. Species continued to evolve and one evolved into the first known bird. The dinosaur is called Archaeopteryx and is the size of a crow or a small running dinosaur.
The climate during the beginning of the Jurassic period was hot and dry. Later, due to the land separating, water filled in the large gaps and caused a warm and moist climate. It had created a greenhouse effect. Most of the terrain afterward was lush and green while very few lands weren’t.
Many of the animals living on the land were carnivores and many others were herbivores. Carnivores are animals that eat meat and herbivores are animals that eat plants. These two types of animals that lived constantly battled each other for food. The carnivores were eating the herbivores and the herbivores were trying to defend themselves. Although they ate different types of food both type of dinosaurs were very large. Some carnivores were very small in size but most herbivores were very big so they could reach plants from high up. Marine life was based off of carnivores and many had four flippers and long shaped bodies.
Life in the Jurassic period wasn’t easy due to the diversity of animals and plants. This is the period that had the largest living animals in it as well as the period to have many species living. Survival of the fittest often took place between all the different types of species living on land or at sea.
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