Did you know?
Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
Did you know?
A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.
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Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).
Did you know?
The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
The frequency of competition according to the number of species involved.
Distributions of two barnacle species within the intertidal zone
Common invasive species in the Adelaide Hills: Olive, Artichoke thistle, Fennel and Bamboo
The Human Ear
Species Diversity "تنوع الكائنات الحية"
Human mtDNA molecule, showing the locations of HVS I and II regions relative to other mtDNA genes