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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

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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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Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

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Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

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People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Killer whales, like this one spotted near Alaska, commonly breach, often lifting their entire bodies Killer whales, like this one spotted near Alaska, commonly breach, often lifting their entire bodies
Platycnemididae are a family of damselfly called white-legged damselflies. Platycnemididae are a family of damselfly called white-legged damselflies.
Platystictidae is a family of damselflies, commonly known as shadowdamsels. Platystictidae is a family of damselflies, commonly known as shadowdamsels.
Protoneuridae is a family of damselflies. Most species are commonly known as threadtails, while othe Protoneuridae is a family of damselflies. Most species are commonly known as threadtails, while othe
Angioplasty. One form is called balloon angioplasty, shown here. A balloon catheter is threaded into Angioplasty. One form is called balloon angioplasty, shown here. A balloon catheter is threaded into
Cardiac catheterization. Insertion of a tube called a catheter through a blood vessel. In this examp Cardiac catheterization. Insertion of a tube called a catheter through a blood vessel. In this examp
Video: Factors that increase metabolic rate and heat production

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