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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

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Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

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The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

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Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

English Shepherd English Shepherd
Cranial capacity has increased approximately fourfold over the last 3.5 million years of hominin evo Cranial capacity has increased approximately fourfold over the last 3.5 million years of hominin evo
With their specialized language and activities, surfers are highly recognized as members of a ... With their specialized language and activities, surfers are highly recognized as members of a ...
Reading and talking about a picture book is one effective way to improve children’s language ... Reading and talking about a picture book is one effective way to improve children’s language ...
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Animals and Language (1 of 2) Animals and Language (1 of 2)
Video: Types of antimicrobial substances (interferons & complement protein)

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