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Did you know?
Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
Did you know?
Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.
Did you know?
Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.
Did you know?
The average adult has about 21 square feet of skin.
Did you know?
Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
![Some red squirrels adopt the offspring of related individuals, a likely example of kin selection pro](https://biology-forums.com/gallery/47/medium_33_09_09_11_10_15_28_17161536.jpeg)
![The gaping hole in the destroyer USS Cole, in the port of Aden, Yemen, was the work of suicide bombe](https://biology-forums.com/gallery/47/medium_27_24_08_15_1_42_53_22398558.jpeg)