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Nichole Gunter and coauthors hypothesize that dung beetles probably evolved during the Cretaceous Period to eat dinosaur poo, and that "the switch in dinosaur diet to incorporate more nutritious and less fibrous angiosperm foliage provided a palatable dung source that ultimately created a new niche for diversification." Julius Nielsen and coauthors publish an account of the longest-lived vertebrate so far discovered: a Greenland shark ( Somniosus microcephalus ) that ranges in age from 272 to 512 years old
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New slaves were apprenticed to older veterans of the fields to learn these skills and slave families were frequently separated when a skilled tobacco slave was kept but his or her family sold
The names of the repository/repositories and accession number(s) can be found below: Author contributions YW: Conceptualization, Data curation, Formal Analysis, Investigation, Methodology, Resources, Software, Validation, Visualization, Writing original draft, Writing review & editing
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