Gigantism and acromegaly are two disorders with the same disease mechanism and somewhat similar presentations. Even though they have the same disease mechanism, the two have entirely different outcome simply due to the age of onset. Gigantism is the result if the disease mechanism starts in childhood.
Adult Velociraptors grew up to 6.8 feet (2 meters) long, 1.6 feet (0.5 meter) tall at the hip and weighed up to 33 pounds (15 kilograms).
Bald eagles have also been seen stealing prey from other birds in mid-air, particularly osprey. Bald eagles are among the largest raptors in the United States, second only to the California Condor. They measure from 28 - 40 inches in length, or about 2.5 - 3.5 feet. The wingspan can reach from 72 - 90 inches, or 6 - 7.5 feet. Females of this species are slightly larger than the males.