« previous next »
« previous next »
 

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Severe erosion following deforestation in Madagascar. Severe erosion following deforestation in Madagascar.
Affect. Affect.
Ardipithecus kadabba has large canine teeth that are only slightly smaller than those of living apes Ardipithecus kadabba has large canine teeth that are only slightly smaller than those of living apes
The Neandertal skull and teeth. The Neandertal skull and teeth.
Withdrawing Medication from Single-Dose or Multiple-Dose Vials Withdrawing Medication from Single-Dose or Multiple-Dose Vials
Structure and function of human teeth. Structure and function of human teeth.
Video: Bone Healing Animation

For a complete list of videos, visit our video library