Baby giraffes need a great deal of rest during the first couple of weeks of life and they do this lying down.

During birth, the calf will drop to the ground, since mother giraffes give birth standing up. The fall can be as far as 5 feet (1.5 m)

New calves are quite large, at 6 feet tall (1.8 m), 100 to 150 lbs. (45 to 68 kg), according to the San Diego Zoo. They are also agile. At just an hour after birth, they can stand up and walk around.

At 3 to 6 years old, calves are fully mature.