Bats modify their red blood cells to become thicker and more rigid when they hibernate – and if we can figure out how, people might one day be able to copy the process for medical treatments or long-distance space travel.
Animals hibernate to conserve energy during cold weather or when food becomes scarce, slowing their heart rate and dropping their body temperature to as low as 5°C (41°F) to enter a state known as torpor. This is only survivable if their blood continues…