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).
How big are raptors? Answer Wiki. Raptors are actually a whole family of dinosaurs, known as the dromaeosaurs. All of these are modestly-sized dinosaurs with a sickle claw on the second toe, a stiffened, counter-balancing tail, arms that fold the same way bird wings do, and feathers. There are at least 35 species known to date. The smallest is Rahonavis (meaning death-from-the-clouds bird), which was about 2.5 feet long, and weighed around 15 pounds; the largest is Utahraptor, 23 feet in length and roughly 600 pounds. Velociraptor in particular got to about 6 feet in length and around 60 pounds.