« previous next »
« previous next »
 

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

The human oxygen-hemoglobin dissociation curve. The human oxygen-hemoglobin dissociation curve.
Persian leopard (Panthera pardus ciscaucasica), also called Caucasian leopard Persian leopard (Panthera pardus ciscaucasica), also called Caucasian leopard
Gomphidae is an Odonata family that contains about 90 genera and 900 species. They are commonly refe Gomphidae is an Odonata family that contains about 90 genera and 900 species. They are commonly refe
Zonal wind speeds on Uranus. Shaded areas show the southern collar and its future northern counterpa Zonal wind speeds on Uranus. Shaded areas show the southern collar and its future northern counterpa
Sunlight on Mars is dimmer than on Earth. This photo of a Martian sunset was imaged by Mars Pathfind Sunlight on Mars is dimmer than on Earth. This photo of a Martian sunset was imaged by Mars Pathfind
The heavily worn, and sometimes cutmarked, anterior teeth of Neadertals suggest that these teeth wer The heavily worn, and sometimes cutmarked, anterior teeth of Neadertals suggest that these teeth wer
Video: Molecules, Membrane Permeability and Structure

For a complete list of videos, visit our video library