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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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Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

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The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

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There are more bacteria in your mouth than there are people in the world.

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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

A young elephant in Zimbabwe. A young elephant in Zimbabwe.
A young elephant in Zimbabwe. A young elephant in Zimbabwe.
Shy children often have a high arousal level in novel social situations. Over time, parents can help ... Shy children often have a high arousal level in novel social situations. Over time, parents can help ...
Because of immature visual-motor coordination, young children find it hard to throw and catch small ... Because of immature visual-motor coordination, young children find it hard to throw and catch small ...
Vienna: Social Structure and Social Interaction Vienna: Social Structure and Social Interaction
Children who witnessed violence in their homes Children who witnessed violence in their homes
Video: Carbohydrate Metabolism: Introduction to renal processes and filtrate formation and composition

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