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Did you know?
Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.
Did you know?
Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
Did you know?
Thyroid conditions may make getting pregnant impossible.
Did you know?
A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
![(a) Mean duration (days) and (b) average maximum depth (mm) of snow cover throughout northern latitu](https://biology-forums.com/gallery/47/medium_33_08_09_11_10_42_11_1675758.jpeg)
![Scaling the Earth down to the size of a basketball, the Moon is roughly the size of a tennis ball. T](https://biology-forums.com/gallery/47/medium_12359_23_01_13_7_13_34.png)