Tuesday, January 21, 2014
How the Ancient Agathis tree spread across the Earth.
In South America scientist have found fossils of a tree that is over 52 million years old. Before this, fossils of this tree were only found in Australia where it still live today. These trees have soft wood, thick trunk, and can grow to 200 ft. These fossils date back to when Antartica, Australia, Africa, and South America were a part of Gondwana . In ancient times the ancient trees grew across all of Gondwana. It is possible that dry weather in South America made it impossible for them to keep growing. It also possible that they could not grow in Antartica because of cold weather. Although the tree has survived from ancient times, it is possible that it will not be able to respond to human threats such as logging and deforestation.
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