The reason why extant birds are toothless compared to their closest toothed relatives, Hesperornithiformes and Ichthyornithiformes, from the Cretaceous period, is attributed to differences in diet and modes of predation. #MUevolution18 https://t.co/jatN4LU
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Cuando los pollos tenían dientes... https://t.co/uThNzg5TsZ
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Synchrotron imaging of dentition provides insights into the biology of Hesperornis and Ichthyornis,... https://t.co/M8HICOzK3e #bmcevolbiol
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RT @BMC_series: Dentition of the 'last' toothed birds in unprecedented detail: https://t.co/u0n4Qnce9O #FossilFriday https://t.co/0CnHvVlA2x