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Did you know?
Your heart beats over 36 million times a year.
Did you know?
Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.
Did you know?
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
Did you know?
About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.
Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.
![Measures of ocean chlorophyll-a concentrations from part of Atlantic Canada in (a) January 2006, and](https://biology-forums.com/gallery/47/medium_33_19_02_12_5_44_56_20731897.jpeg)
![The image formed on the retina is inverted. The brain rights the image as part of the interpretation](https://biology-forums.com/gallery/47/medium_14755_27_08_12_12_24_59_81982202.jpeg)