Science NOW

Image: Eviatar Nevo

Blind mole rats could be a real eye-opener for evolutionary science. According to a new study, the burrowing rodents are key to answering a controversial question about how new species arise.

Sex is a near-universal fact of life that helps spread genes through a population. When a mountain chain or some other physical barrier blocks that spread, a population may evolve into two genetically distinct groups that are no longer able to interbreed successfully. This process is known as allopatric speciation.

In theory, though, new species can form even without a physical barrier to force the issue. Read more on the Science NOW website…