Add Yahoo as a preferred source to see more of our stories on Google. Dopasia formosensis in natural habitat. Photographed by Y-JL. (CREDIT: ZooKeys) A slender reptile slips beneath damp leaf litter ...

There are millions of different types of living things on Earth. In order to keep track of them all, scientists put living things into groups based on characteristics that they have that are the same.

A slender reptile slips beneath damp leaf litter in Taiwan’s mountain forests, rarely seen and often mistaken for a snake. For more than a century, scientists have argued over what, exactly, it is.