There may be a lot more biological diversity on Earth than meets the eye.
By Dawn Stover
Posted 12.18.2001 at 10:01 pm
Now that scientists can analyze the DNA of any species, they are discovering that many animals that look indistinguishable are actually quite different at the genetic level-different enough to be classified as separate species. That means there may be a lot more biological diversity on Earth than meets the eye.
For example, biologists at the University of California, Berkeley, recently reported the discovery of a new species of Mexican salamander, Lineatriton, that looks identical to another species living several hundred miles away. Only DNA testing can tell them apart.
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