Changes to the bacteria that live inside all of us are responsible for increasing the number of people with allergies, suggests new research.
In this episode of Horizon, the show investigates this claim by conducting a unique experiment with two allergic families in order to find out just what it is in the modern world that is to blame. With a raft of mini cameras, GPS units an...
About the return of the royal treasures of Abomey in Benin, snatched away by colonial plunder, to a country that has had to build itself up and come to terms with their absence.
简介：Changes to the bacteria that live inside all of us are responsible for increasing the number of people with allergies, suggests new research.
In this episode of Horizon, the show investigates this claim by conducting a unique experiment with two allergic families in order to find out just what it is in the modern world that is to blame. With a raft of mini cameras, GPS units an...
