Tetralogy of Fallot (ToF) There are several different heart problems that are in the category of Tetralogy of Fallot. In the most common form, there is a ventricular septal defect and pulmonary stenosis. In Tetralogy of Fallot with Pulmonary Atresia, the pulmonary valve doesnât open at all. Tetralogy of Fallot with Absent Pulmonary Valve can be very dangerous because the pulmonary arteries become so large and take up so much space in the babyâs chest that the lungs canât develop properly.
HABITAT: Giraffes live in the savannas of Africa, where they roam freely among the tall trees, arid land, dense forests and open plains. FOOD: Their long necks help giraffes eat leaves from tall trees, typically acacia trees. If they need to, giraffes can go for several days without water. Instead of drinking, giraffes stay hydrated by the moisture from leaves. BEHAVIOR: Giraffes are non-territorial, social animals. They travel in large herds that are not organized in any way. Herds may consist of any combination of sexes or ages. OFFSPRING: Female giraffes typically give birth to one calf after a fifteen-month gestation period.
According to National Geographic, the average lifespan for a giraffe in the wild is 25 years. Giraffes have been known to live longer when in captivity in zoos.