Sequencing exomes—the 1% of the genome that codes for proteins—has increased the rate at which the genetic basis of a patient’s disease is determined. Unfortunately, when a patient does not carry a well-established pathogenic ...

Since their divergence from a common ancestor some 200 million years ago, mammals have undergone significant diversification in physiology, morphology, habitat, size, and longevity. The maximum lifespan of mammalian species ...