Why have many animals developed horns and antlers?

• A. To enhance their camouflage in forest environments
• B. To improve their ability to digest plant material
• C. To compete for mates and establish dominance within their species
• D. To increase their metabolic rate during cold seasons

Answer: (C)

Verified step by step guidance

1. Understand the role of horns and antlers in animal behavior and evolution. These structures are typically associated with sexual selection and social hierarchy within species.
2. Recognize that horns and antlers are used by many animals, such as deer and antelope, to compete for mates. This competition often involves physical displays or combat to establish dominance.
3. Consider the evolutionary advantage: animals with larger or more impressive horns/antlers may have a higher chance of winning these competitions, thereby increasing their reproductive success.
4. Eliminate incorrect options by analyzing their biological relevance. For example, horns and antlers are not primarily used for camouflage, digestion, or metabolic rate regulation.
5. Conclude that the correct answer is related to mating and dominance, as these traits are directly tied to reproductive success and survival in many species.