Biology

Oldest DNA sheds light on 2 million year old ecosystem that has no modern equivalent | CNN

Oldest DNA sheds light on 2 million year old ecosystem that has no modern equivalent | CNN

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Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific advancements and more. CNN — An Ice Age sediment core from northern Greenland has produced the oldest DNA sequences in the world. The 2 million year old DNA samples revealed that the now largely lifeless polar region was …

Oldest DNA sheds light on 2 million year old ecosystem that has no modern equivalent | CNN Read More »

Non-avian dinosaur with streamlined body shows potential adaptations for swimming – Communications Biology

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Dinosauria Owen, 1842 Theropod Marsh, 1881 Dromaeosauridae Matthew and Brown, 1922 Halszkaraptorinae Cau et al., 2017 Revised diagnosis Small dromeosaurids that possess dorsoventrally flattened premaxillae, premaxillary bodies perforated by numerous neurovascular foramina, enlarged and crowded premaxillary teeth that used delayed replacement patterns, reduced anterior maxillary teeth, dorsolateral placement of retracted external nostrils, very elongated cervical …

Non-avian dinosaur with streamlined body shows potential adaptations for swimming – Communications Biology Read More »