Tell me 5 types of protein found in animals.
1. Actin: Actin is a protein found in muscular tissues of animals and it plays an important role in muscle contractions and movements.

2. Collagen: Collagen is a protein found in the connective tissues of animals. It provides strength and elasticity to tissues including skin, cartilage, and bones.

3. Hemoglobin: Hemoglobin is a protein found in the red blood cells of animals. It plays a vital role in transporting oxygen from the lungs to the rest of the body.

4. Keratin: Keratin is a protein found in the hair, nails, feathers, hooves, and horns of animals. It provides strength and durability to these structures.

5. Myosin: Myosin is another protein found in the muscular tissues of animals. Along with actin, it plays an important role in muscle contractions and movements.
Complete the following task based on the instruction and optional input provided.### Instruction:
Tell me 5 types of protein found in animals.

### Output:
1. Actin: Actin is a protein found in muscular tissues of animals and it plays an important role in muscle contractions and movements.

2. Collagen: Collagen is a protein found in the connective tissues of animals. It provides strength and elasticity to tissues including skin, cartilage, and bones.

3. Hemoglobin: Hemoglobin is a protein found in the red blood cells of animals. It plays a vital role in transporting oxygen from the lungs to the rest of the body.

4. Keratin: Keratin is a protein found in the hair, nails, feathers, hooves, and horns of animals. It provides strength and durability to these structures.

5. Myosin: Myosin is another protein found in the muscular tissues of animals. Along with actin, it plays an important role in muscle contractions and movements.