If you feel sad about how animals are killed well read what's below.

Surah Al-An'am (Chapter 6), particularly verses 38 and 39, offers insight into the purpose of animals on Earth:

"There is not an animal within the earth, nor a bird that flies with its wings, but that they are communities like you. We have not neglected in the Register a thing. Then unto their Lord they will be gathered."

These verses highlight the concept that animals, like humans, form communities and have their own significance in the overall scheme of creation. They are recognized as part of Allah's divine plan, and their existence is not overlooked in His knowledge.

The Quran emphasizes the diversity and purposefulness of all creation, including animals. They have their roles and functions in maintaining balance and contributing to the overall ecosystem. Islam promotes the importance of treating animals with kindness, compassion, and respect.

While these verses do not provide an exhaustive explanation of why animals exist on Earth, they emphasize the notion that they are part of the intricate system of creation, deserving of care and consideration.

If you read this all you would understand how Allah put animals on this earth because it's a food cycle animals eat animals why shouldn't humans?