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Two winged clonal raider ants stand out against a white background. About a decade ago, scientists observing clonal raider ants spotted something strange: Although the species is known to be queenless ...

When invasive fire ants (Solenopsis invicta) were first discovered in the United States, scientists observed that their colonies each had a single queen, and that the ants were extremely aggressive ...

The answer, according to a study released overnight, lies in an astonishing cluster of about 30 genes in a single chromosome. "We were blown away by what we found," said Mathieu Joron of France's ...

The females of the common mormon butterfly are masters of disguise. Some of them look like the black-and-white males, but others embellish their wings with white brushstrokes and red curlicues to ...

—a cluster of genes that is passed on to offspring as one big chunk—controls the different elements of wing patterns, allowing related butterflies to display distinct markings despite having the same ...