|
|
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
Did you know?
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Did you know?
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.