17-19 inches (43-48 cm)
Large, plump-bodied birds with short tails and rounded wings
12 to 16 inches
Small and stout
2 to 4 feet (0.6 to 1.2 meters)
Slender body and a triangular-shaped head
Up to 33 cm
Long and slender body with a segmented exoskeleton
2 to 5 inches (5 to 13 centimeters)
Slender body with long front legs
Male: 66-72 cm, Female: 53-62 cm
Large and stocky with a potbelly
2.5 to 3 meters
Large and robust
1.3 to 1.5 meters
Slim and light
2 to 6 feet (0.6 to 1.8 meters)
Small, bipedal
Approximately 6 meters
Large, with a long neck, beak, and wings
Wingspan: Up to 6 meters
Reptilian, with wings
20-26 inches
Medium-sized with a muscular build
Estimated to be around 30-35 meters
Giant
0.8 to 1.2 meters
Thick and stocky with a short, wide head
1 to 2 feet (30 to 60 cm)
Round and inflated
25-30 cm (10-12 inches)
Compact and stocky
10-14 inches
Compact and muscular
Small and Compact