Fractures of the humerus, scapula and clavicle usually result from a direct blow or a fall onto an outstretched hand. Most can be treated by immobilization. Dislocation of the humerus, strain or sprain of the acromioclavicular and sternoclavicular joints, and rotator cuff injury often can be managed conservatively.
There are many predaceous insects. They eat other animals, including other insects and vertebrates. There are many predaceous insects. They eat other animals, including other insects and vertebrates.
Larger nymphs can capture and eat tadpoles or even small fish. Some dragonfly nymphs skewer their prey with pointed palps. These include immature darners, clubtails, petaltails, and damselflies. Other dragonfly nymphs enclose their prey using mouthparts that grab and scoop.