Oxytropidoceras Posted November 29, 2020 Share Posted November 29, 2020 Why did trilobites go extinct? By Donavyn Coffey, Live Science, November 2020 https://www.livescience.com/why-trilobites-went-extinct.html The open access paper is: Jonathan L. Payne, Alexandra V. Turchyn, Adina Paytan, Donald J. DePaolo, Daniel J. Lehrmann, Meiyi Yu, and Wei, Calcium isotope constraints on the end-Permian mass extinction. PNAS May 11, 2010 107 (19) 8543-8548 https://www.pnas.org/content/107/19/8543 A totally unrelated article is: The role of cat eye narrowing in cat-human communication by Ellie Bennett, Snippet Science, November 2020 https://www.snippetscience.com/the-role-of-cat-eye-narrowing-in-cat-human-communication The open access paper is: Humphrey T, Proops L, Forman J, Spooner R and McComb K. The role of cat eye narrowing movements in cat-human communication. Sci Rep. 2020 Oct. 10, 16503 https://doi.org/10.1038/s41598-020-73426-0 Yours, Paul H. 4 Link to comment Share on other sites More sharing options...
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