1 The largest (heaviest) flying bird today is the Kori Bustard (Ardeotis kori) of Africa, males weigh about 18kg, females about half that. 2  The largest bird ever to fly were the Teratorns (a type of Condor), the largest of which, Argentavis magnificens, had a wingspan of 3 metres, and weighed 120kg.
1 Low blood volume shock (hypovolemic shock). 2  This is one of the most serious, and sometimes life-threatening, complications of dehydration. 3  It occurs when low blood volume causes a drop in blood pressure and a drop in the amount of oxygen in your body. It occurs when low blood volume causes a drop in blood pressure and a drop in the amount of oxygen in your body. 2  Kidney failure. 3  This potentially life-threatening problem occurs when your kidneys are no longer able to remove excess fluids and waste from your blood. 4  Coma and death.
Hypovolemic shock. Hypovolemic shock is an emergency condition in which severe blood or fluid loss makes the heart unable to pump enough blood to the body. This type of shock can cause many organs to stop working. Losing about a fifth or more of the normal amount of blood in your body causes hypovolemic shock.