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Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

(a) Age of maturity of Atlantic cod decreased during the fishery collapse. (b) Evidence of maturatio (a) Age of maturity of Atlantic cod decreased during the fishery collapse. (b) Evidence of maturatio
Historian James Merrell notes several errors in Benjamin West’s famous 1771 painting, William Penn’s Historian James Merrell notes several errors in Benjamin West’s famous 1771 painting, William Penn’s
Evidence of Numerical Estimation Evidence of Numerical Estimation
Four pieces of evidence that the reticular formation is involved in sleep. Four pieces of evidence that the reticular formation is involved in sleep.
A phylogenetic tree showing the evolutionary relationships among hominoids. The evidence shows that A phylogenetic tree showing the evolutionary relationships among hominoids. The evidence shows that
Visible evidence of mosaic tissues in a human female Visible evidence of mosaic tissues in a human female
Video: Electrical changes in the heart

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