In 2011, researchers discovered two new species of freshwater stingrays in the Amazon River.
The Heliotrygon (rosai and gomesi), commonly referred to as the Pancake stingrays, is the first new genus of stingrays from the Amazon described since 1987.
A macrolide antibiotic used in modern medicine was first isolated in 1975 from Streptomyces hygroscopicus bacteria from a soil sample taken on Easter Island.
The drug called Sirolimus (rapamycin) is an immunosuppressant used in transplantation. Rapamycin is ...