Twins Bridgette and Paula Powers have gone viral for the way they speak in unison, using the same gestures and words.
Articles on Fraternal twins
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Animals often give birth to litters of more than one offspring at a time. But are those babies twins?
While identical twins are seen more as an accidental splitting of a single egg, there could be a good reason mothers produce non-identical twins from two separate eggs.
Top contributors
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Associate Professor in Evolutionary Biology, The University of Western Australia
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Associate Professor of Small Animal Surgery, Mississippi State University
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Assistant Clinical Professor of Veterinary Medicine, Mississippi State University
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Professor of Biology, DePauw University
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Director of the Centre for Culture and Evolution, Brunel University of London
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Professor of Psychology and Director of the Twin Studies Center, California State University, Fullerton
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Deputy Director, Twins Research Australia & Professor in Genetics and Cell Biology, Deakin University