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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

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All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

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The FDA recognizes 118 routes of administration.

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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

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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.

Dred Scott and his wife and children are featured on the cover of Frank Leslie’s Illustrated Newspap Dred Scott and his wife and children are featured on the cover of Frank Leslie’s Illustrated Newspap
A passenger train crosses Stony Creek Bridge in the Rocky Mountains in 1878. Railroads were importan A passenger train crosses Stony Creek Bridge in the Rocky Mountains in 1878. Railroads were importan
Marina Abramović, The House with the Ocean View—Nov. 22 9:54 am, 2002. Living installation. Marina Abramović, The House with the Ocean View—Nov. 22 9:54 am, 2002. Living installation.
Top Prescriptions for Children Under 17 Years of Age (2002–2010) Top Prescriptions for Children Under 17 Years of Age (2002–2010)
Passenger Space Oddity (David Bowie Cover) Passenger Space Oddity (David Bowie Cover)
An organizational specialist is hired as a consultant to a company planning to open a coffee ... An organizational specialist is hired as a consultant to a company planning to open a coffee ...
Video: Mendel's Principles of Inheritance (Father of Genetics)

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