HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.
Did you know?
There are approximately 3 million unintended pregnancies in the United States each year.
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Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.
Energy budget for a temperate deciduous forest (data from Gosz et al. 1978).
Tides on Earth
Tides on Earth
Lightning on Earth
Earth-Sun Relationships
How Does Earth Work? Physical Geology and the Process of Science, 2nd Edition