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Did you know?
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
Did you know?
Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
Did you know?
Medication errors are more common among seriously ill patients than with those with minor conditions.
Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.
![Peripheral veins used in intravenous therapy; A, forearm; B, dorsum of the hand; C, dorsal plexus of](https://biology-forums.com/gallery/47/medium_18099_26_09_12_4_30_04.jpeg)
![In one-male group species, extra males typically reside in all-male “bachelor” groups. These are Han](https://biology-forums.com/gallery/47/medium_269691_26_01_15_5_55_26_204481514.jpeg)