Running elephants, far-flying mosquitos, ancient crocodiles and more...
Going the Distance
When West Nile virus surged across the United States between 2001 and 2004, infected migratory birds were blamed for the disease’s rapid expansion. Now Johns Hopkins researchers say mosquitoes themselves, which transmit the virus to animals they bite, cover enough ground to carry the virus cross-country. Analyzing DNA from Culex tarsalis mosquitoes from 20 locations in the West, the researchers found that the insects, known to travel up to 2.5 miles per day, interbreed throughout much of the West, mingling more than researchers expected.
Learn more about the culex tarsalis mosquito 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
The spectacular sights of the cosmos are now as easy to see as the stars above, with the 18 lavishly illustrated lectures of A Visual Guide to the Universe, produced in partnership with the Smithsonian. Orbit Saturn, search for water and life on Mars, and witness an armada of space telescopes uncovering the secrets of the cosmos.