Author: Admin

A person is infected with malaria by four parasites from the genus of Plasmodium: Plasmodium vivax (pathogen of three-day malaria), […]

Nothing in biology makes sense except in the light of evolution. On a windy spring day in Sardinia, I wander […]

In March, 1819, a physician named John Bostock presented to the Medical and surgical society of London a description of […]

In 1817, the world learned of a new disease, cholera-an acute gastrointestinal disease that kills a person in one day. […]

At the dawn of the nineteenth century, when industrialization was shaking great Britain, the newly independent United States of America […]

More than a hundred years earlier, a new type of building appeared in the countryside of the English County of […]

Imagine that you are a worm watching this great human drama. You, like everyone else, just want to live and […]

Five thousand years ago, human settlements became large enough to support epidemic diseases. How many people lived in these settlements? […]

About 12,000 years ago (or perhaps earlier), someone in the Levant deliberately planted the seeds, perhaps tended the seedlings, and […]

After leaving Africa some 45,000 years ago (probably even earlier), modern humans arrived in Australia and 40,000 years ago in […]