The current mass extinction differs from all others in being driven by a single species rather than a planetary or galactic physical process ... history. . . . We live on a human-dominated planet and ...

Water is also vital for healthy growth and development. All cell reactions happen in solution, and water is used to transport dissolved nutrients and waste products around the body in the blood.

British scientists unveiled research indicating that the human brain grew slowly over millions ... and contradicting previous beliefs of sudden growth. The study, a collaboration between the ...