Despite a scientist fighting "hard" against the claim, humanity spawned from a single pair which lived 100,000 to 200,000 years ago, according to a new study, the U.K.'s Daily Mail reported.
"This conclusion is very surprising,'" University of Basel, Switzerland, research associate David Thaler told the paper. "And I fought against it as hard as I could."
Senior Research Associate Mark Stoeckle and Thaler surveyed the DNA of five million animals, including humans, "and deduced that we sprang from a single pair of adults after a catastrophic event almost wiped out the human race," per the report.
Stoeckle and Thaler concluded that 90 percent of all of today's animal species come from parents that all began giving birth at roughly the same time, less than 250 thousand years ago, leaving some doubt on human evolution.
"At a time when humans place so much emphasis on individual and group differences, maybe we should spend more time on the ways in which we resemble one another and the rest of the animal kingdom," Stoeckle told the Daily Mail.
". . . One might have thought that, due to their high population numbers and wide geographic distribution, humans might have led to greater genetic diversity than other animal species," Stoeckle added. "At least for mitochondrial DNA, humans turn out to be low to average in genetic diversity."
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