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Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

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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.

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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

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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.

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In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Metabolic rates of animals that differ in size. Metabolic rates of animals that differ in size.
Gaser and Schlaug's study of the size of visual, motor, and auditory nuclei in the brains of mu Gaser and Schlaug's study of the size of visual, motor, and auditory nuclei in the brains of mu
The mark-recapture technique is often used to estimate population size. The mark-recapture technique is often used to estimate population size.
Biodiversity Depends on the Size of Habitat Biodiversity Depends on the Size of Habitat
This map shows the percentage of Protestants by state in Germany. When compared to the previous map This map shows the percentage of Protestants by state in Germany. When compared to the previous map
Analogies for estimating portion size Analogies for estimating portion size
Video: Homologous chromosomes during prophase I - Animation

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