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 average adult has about 21 square feet of skin.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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There are approximately 3 million unintended pregnancies in the United States each year.
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Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.
Ishihara color plate for testing color blindness.
Ethnic Differences in Financial Support for College Based on a sample of 304 emerging adults aged 2
Algorithm for assessing/screening sleep disorders in adults.
Examples of endocrine disorders. (B) A patient with a goiter.