The presence of animals is essential because it maintains the balance in the ecosystem. In today’s world, some animals also serve as companions and help reduce our stress, anxiety, depression, and loneliness. Every organism has a unique place in the food chain, and each contributes to maintaining the existence of life on this planet. The man had learned early that with their more complex and advanced mind, they are superior to any other animal on the Earth. Humans are harmed because of misleading animal testing results. They are deliberately made sick with toxic chemicals, infected with diseases, and live in barren cages until they eventually die. 

From Ashley Han

"According to the Humane Society, more than 25 million dogs, cats, monkeys, mice, rats and other animals are forced to endure painful experiments in the US (and it is estimated that more than 115 million animals worldwide are used in laboratory experiments every year)."

According to the CFK, 

"Animals in animal testing are burned, crippled, poisoned and abused every year, in cruel chemical, drug, food and cosmetics tests — as well as in medical training exercises and curiosity-driven medical experiments." 

--- These are the reasons why we need to ban animal testing because it is brutal to make this for the poor animals to suffer through that much pain, which ends in their death. We have no the rights to use animals as the subject for any researches or experimentations just as we do not have the right to experiment on humans without their consent. We should respect the rights of all species, just as we respects the right of all people.