And it's all thanks to convergent evolution.
an evolutionary palaeobiologist at the University of Cambridge, says"with reasonable confidence" that human-like evolution has occurred in other parts of the universe.The idea is part of a wider school of thought called"convergent evolution." It states that the random mutations driving evolution average out in any given environment, meaning that similar organisms are likely to evolve independently of each other.
"Convergence is one of the best arguments for Darwinian adaptation, but its sheer ubiquity has not been appreciated," explains Prof. Morris. "One can say with reasonable confidence that the likelihood of something analogous to a human evolving is really pretty high.
Whether its inhabitants are polar bear-sized or not, it's certainly interesting to imagine a human-like civilization millions of light-years away from Earth. Could such a civilization also be wondering about life elsewhere in the universe? With NASA having recently launched its , which will help to search for signs of alien life, we may soon have a better idea of what's out there.
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