- Giraffes have several adaptations for their long necks, including a four chambered stomach, seven vertebrae in their necks, and a complex circulatory system to regulate blood flow to the brain against gravity. - They can run at speeds up to 37-60 mph and bend their forelegs to drink. Females give birth to a single calf after over a year of gestation. - Giraffes are social animals living in herds of 10-70 individuals. They browse for over 16 hours a day on various plants and need to drink every 2-3 days.