Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.
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Blood is approximately twice as thick as water because of the cells and other components found in it.
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The longest a person has survived after a heart transplant is 24 years.
Japanese Cockroach
Eighteen-year-olds were the largest age cohort in the first year of the war in both armies. Soldiers
These monolithic figures from Easter Island suggest the contemplative nature of philosophy, which ca