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The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

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The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

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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.

The Pantanal, Brazil, seen here in flood condition, is a critical jaguar range area. The Pantanal, Brazil, seen here in flood condition, is a critical jaguar range area.
Tobacco hornworm caterpillar Manduca sexta parasitized by Braconidae wasp larvae Tobacco hornworm caterpillar Manduca sexta parasitized by Braconidae wasp larvae
Endocarditis. The human heart has been sectioned to reveal the left ventricle and origin of the aort Endocarditis. The human heart has been sectioned to reveal the left ventricle and origin of the aort
Indian Tobacco Indian Tobacco
Dermatitis herpetiformis is a blistering skin condition associated with celiac disease. Dermatitis herpetiformis is a blistering skin condition associated with celiac disease.
Infected Tobacco Leaves by a Virus Infected Tobacco Leaves by a Virus
Video: What is Reverse Osmosis?

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