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Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

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The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

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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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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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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

This is a view of the moon transiting This is a view of the moon transiting
external structure of female reproductive system external structure of female reproductive system
The structure of bone. The structure of bone.
Chemical structure of DNA. Chemical structure of DNA.
The structure of the influenza virus The structure of the influenza virus
Structure of phospholipase A2 Structure of phospholipase A2
Video: Random alignment at Metaphase I Animation

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