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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

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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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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

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No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

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Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

This young boy with muscular dystrophy needs to receive tube feedings and home nursing care. He atte This young boy with muscular dystrophy needs to receive tube feedings and home nursing care. He atte
In 2008, the U.S. economy suffered a gaping wound as several trillion dollars were ripped out of it. In 2008, the U.S. economy suffered a gaping wound as several trillion dollars were ripped out of it.
Basic Food Group Choices for a 1,200 Calorie Eating Plan Basic Food Group Choices for a 1,200 Calorie Eating Plan
This frame from a home video shows Eric Harris (on the left) and Dylan Klebold (on the right) as ... This frame from a home video shows Eric Harris (on the left) and Dylan Klebold (on the right) as ...
Nuts are also a good source of B group vitamins (including folate), and vitamin E Nuts are also a good source of B group vitamins (including folate), and vitamin E
Production of ABO blood group antigens Production of ABO blood group antigens
Video: Sickle Cell Anemia

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