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Scientists have studied the development of the amphibian and reptile fauna in Western Siberia during the past twelve million years. In their study, they demonstrate that the species diversity of both groups of animals was noticeably higher in the past than it is today. Among others, for the first time the researchers discovered an Asiatic representative of the extinct frog family Palaeobatrachidae as well as evidence of a giant salamander with a length of up to 1.80 meters.
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