Did you know?
In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.
Did you know?
Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.
The degree of cerebral cortex folding in different mammalian species. The brains are not shown to sc
Dicksonia antarctica, a species of tree fern
Orcinus citoniensis fossil, an extinct species of the same genus, Museo Capellini di Bologna
Coelacanth Genes Mapped, "Living Fossil" Evolved Slowly
Brain metabolism in a schizophrenic individual (left) and a normal individual (right). These scans o
Life cycle of a Plasmodium species that causes malaria