The angle of a surface - not its slipperiness - triggers when geckos turn on their superhero-like ability to walk on walls and ceilings, a new study finds. Jorge Ribas reports.
Maryland Blue Crab populations are dwindling and researchers are trying to find ways to replenish the stock. Kasey-Dee Gardner learns about technology being use to do just that.
Food puzzles, habitat design and sensory training are just a few of the ways the Smithsonian's National Zoo enriches the lives of its animals. Jorge Ribas finds out more.