As humanity establishes isolated colonies in space, human evolution could diverge dramatically over 100,000 years. Natural selection in low gravity might favor taller, slimmer bodies with less muscle and bone density, while cosmic radiation could drive adaptations like enhanced DNA repair, darker skin, or better resistance to mutations and cellular aging. Microgravity causes rapid bone […]
Tag: natural selection
Which Came First: Chicken or Egg? Science Explains
The classic riddle “which came first, the chicken or the egg?” is a philosophical paradox about origins and causality, but science clearly answers: the egg came first. Eggs as reproductive structures existed billions of years ago in single-celled organisms and evolved into amniotic eggs around 340 million years ago, allowing land-based development in reptiles and […]
Why are Humans on Earth? | Q&A
The scientific consensus is that humans evolved on Earth over millions of years through a process of natural selection. Our earliest ancestors diverged from other primates around 6-7 million years ago, and over time, evolved into the modern human species we are today, Homo sapiens. As to the purpose or reason for our existence, that […]
