In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.
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Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
Different mechanisms of sex determination in animals.
whitefish blastula cells
Intracellular relationships involving the glyoxylate cycle in plant cells