Final answer:
A spinal fracture is identified by fractures in the dorsal spinous processes of the lumbar vertebrae in animals. The lumbar vertebrae support a large amount of body weight, which is why such injuries can be particularly severe.
Step-by-step explanation:
Identification of Lumbar Vertebrae Injury in Animals
An injury identified by fractures in the dorsal spinous processes of the lumbar vertebrae in animals would be a spinal fracture. The lumbar vertebrae are characterized by having a large, thick body to support a significant amount of body weight and a short, rounded spinous process. Such fractures typically result from traumatic events and can lead to severe consequences like paralysis, depending on the extent of injury to the spinal cord.
In this context, option A) Hip dislocation, B) Leg fracture, and C) Rib fracture are not identified with fractures specifically in the dorsal spinous processes of the lumbar vertebrae, making D) Spinal fracture the correct choice.