Darwin, the Hipster

Charles Darwin, stars on the performance stage.

One of the general principals of evolution is that "if a niche is empty, something will evolve to fill it". Over and over again since life on Earth appeared nearly 4 billion years ago, filling niches presented by new environments-- islands, mountain tops, canyon walls, geothermal pools, etc. --has constantly occurred. What is less known is a subset of this evolutionary process called: convergent evolution which produces organisms that have structures with similar appearances or ...
  • 17 July 2011
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