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The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.
Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.
Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.
Approximately 25% of all reported medication errors result from some kind of name confusion.
Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.
![A typical fuel pulsator used mostly with roller vane-type pumps to help even out the pulsation in ...](https://biology-forums.com/gallery/29/medium_548020_30_05_17_11_10_59_2998273.png)
![A typical direct-injection system uses two pumps—one low-pressure electric pump in the fuel tank ...](https://biology-forums.com/gallery/30/medium_548020_31_05_17_1_51_45_30018512.png)