The tails of polygamous deer mice sperm have longer midsections than the sperm tails of monogamous individuals of a similar species, and this correlates with improved swimming and competitive ability.
Ancestries of nearly two dozen indigenous groups in the region reveal a close link between the genetic clustering of populations and the Kalahari Desert’s ecogeography.
Researchers have determined that a diminutive insect out-flies all other winged migrators by traveling thousands of miles between continents and across oceans yearly.
Many patients with genetic variations linked to cardiac disorders do not exhibit any symptoms, raising concerns about the validity of incidental findings of genetic tests.