Hi, I was reading the right solution of this task in the website, however I don't undestand how works the "Human... children" part in the constructor. Could someone explain it to me? Thanks 
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 public Human(String name, boolean sex, int age, Human... children) {
            this.name = name;
            this.sex = sex;
            this.age = age;

            Collections.addAll(this.children, children);
        }