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Males No Longer Needed
An ant native to Central and South America has done away with males, researchers in Texas and Brazil confirm. Scientists suspected that Mycocepurus smithii reproduces asexually; new tests show that queens don't use sperm to fertilize their eggs. Without males to keep the gene pool diverse, though, the ants could accumulate enough mutations to go extinct.
Learn more about the ant Mycocepurus smithii at the Encyclopedia of Life.
Have you ever wondered how a simple shot can keep you from dying a horrible death? In this one-minute video, Ask Smithsonian’s host, Eric Schulze, unravels how vaccines boot-camp our bodies into shape, getting us ready to fight off deadly diseases
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The Smithsonian is a repository of America's history, achievements, aspirations, and identity. It holds the artifacts of great leaders, and those of ordinary Americans. It houses scientific specimens and technological wonders. It is home to art, music, films, writings-a vast treasure trove of objects of extraordinary beauty and outstanding design.