- Body shape: Trout have a streamlined, torpedo-shaped body that is well-suited for swimming in fast-moving water.
- Fins: Trout have two dorsal fins, one located near the middle of the back and the other located near the tail. They also have two pectoral fins, located on the sides of the body just behind the head, and two pelvic fins, located on the underside of the body just in front of the anal fin.
- Scales: Trout have small, cycloid scales that are embedded in the skin.
- Teeth: Trout have sharp teeth that they use to catch and eat prey.
- Lateral line: Trout have a lateral line that runs along the side of the body from the head to the tail. The lateral line is a sensory organ that helps trout detect movement in the water.
- Diet: Trout are carnivorous fish that feed on a variety of prey, including insects, small fish, and crustaceans.
- Habitat: Trout are found in cold, clear water streams and lakes.