« previous next »
« previous next »
 

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Electron Microscope Image of a Fly Foot Electron Microscope Image of a Fly Foot
An image of a streptococcus bacteria taken by a scanning electron microscope. An image of a streptococcus bacteria taken by a scanning electron microscope.
Big Picture of the Evolution of the Universe Big Picture of the Evolution of the Universe
Reverse Faults Reverse Faults
Compressing the breast between plates provides a better image of breast tissue. Regular mammograms ... Compressing the breast between plates provides a better image of breast tissue. Regular mammograms ...
The Retinal Image The Retinal Image
Video: Stages of Mitosis - Prophase, Prometaphase, Metaphase, Anaphase & Telophase

For a complete list of videos, visit our video library