In 1864, the first barbiturate (barbituric acid) was synthesized.
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According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
Tiny 'Spherules' Reveal Details About Earth's Asteroid Impacts
Composite Faces
Healthier choices can be made when time is taken to read a nutrition label.
How to write a composite function f(g(x)) and g(f(x)) (Part 2)