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Head researchers (�������� alumnus and now Yale grad student) Jack McBride and (�������� Associate Professor of Anthropology) Tesla Monson have been studying litter size for several years, as they have been quoted as saying in Live Science. In the study, they present an argument that “assessing this life history trait across the mammalian phylogeny…can shed light on the evolutionary processes shaping human evolution.”

Not suspecting that they would refute the current narrative, they approached their research intending to conduct a broad and in-depth survey of the number of babies our ancestors produced.