Human Hope you can give me suggestions. Thank you! Who is the smartest animal in the world? We all know the answer. It is the human. Humans evolved from primate animals. Each human’s weight and height vary by the environment they live. It’s dependent on whether the resource is abundant or not. The color of skin is one explicit difference in all humans. And it causes some problems like race discrimination. Due to the medical development, we can live up to 120 years. Humans are social pack animals that need attentions and affection. Humans have a strong bond with their friends and family. Humans have expectations with their friends and family. So if they don’t meet our expectations, humans would be upset. Emotion plays an important role in humans. Humans are not as strong as lions, humans can’t run as fast as antelope. But humans are the smartest animals in the world. The brain makes human overcome most obstacle on the pace. Some methods make life more convenient has destroyed other species’ life. Humans make their life more wonderful. They rule the planet. So they have the responsibility to make other species as good as themselves.