Last Updated: Monday, December 16, 2013, 16:22
Researchers have found proof for catastrophic oceanographic events linked with climate change and a mass extinction 375 million years ago that devastated tropical marine ecosystems.
Last Updated: Friday, August 30, 2013, 12:26
Evidence of early land animals on the ancient southern supercontinent of Gondwana has been found in the Eastern Cape, South Africa.
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