Researchers made the find using an algorithm that purportedly distinguishes between mutations that were selected for and those that came along for the ride by coincidence, a feat that has long eluded scientists.
Mammals that give birth to live young may have evolved to make use of the remnants of viruses in their genomes to ward off pathogens, a study suggests.
A reference sequence for this emerging model organism will facilitate research on type 2 diabetes and the health effects of circadian rhythm disruption.