Cute video alert: Six hundred feet below the ice where no light shines and scientists thought only the hardiest of microbes could survive, a curious shrimp-like creature swims by and then hitches a ride on the camera's cable.

The idea was for the National Zoo to establish a captive colony of endangered Virginia big-eared bats, to shield them from a deadly epidemic and ensure that there would be survivors if the wild population were destroyed.

The gene sets of a four-member family were analyzed in research that suggested parents pass fewer gene mutations to their offspring than previously thought.