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During the first 2.5 billion years of life on Earth, bacteria and archaea followed separate paths of evolution, existing as distinct...

During the first 2.5 billion years of life on Earth, bacteria and archaea followed separate paths of evolution, existing as distinct...

Biologically speaking, men and women belong to the same species and share a common evolutionary ancestor. However, their reproductive...

Biologically speaking, men and women belong to the same species and share a common evolutionary ancestor. However, their reproductive...