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Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

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Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

An adult male killer whale with its characteristic tall dorsal fin swims in the waters near Tysfjord An adult male killer whale with its characteristic tall dorsal fin swims in the waters near Tysfjord
Adult blue whale Adult blue whale
Emerging adults often feel adult in some ways but not others. Emerging adults often feel adult in some ways but not others.
Income of Adult Children Compared With That of Their Parents Income of Adult Children Compared With That of Their Parents
Adolescent girls reach adult height sooner than boys because their bones grow more rapidity Adolescent girls reach adult height sooner than boys because their bones grow more rapidity
Video: Optic Nerve and Optic Disk Animation (Part 2 of 2)

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